This list of fossil molluscs described in 2021 is a list of new taxa of fossilmolluscs that were described during the year 2021, as well as other significant discoveries and events related to molluscan paleontology that occurred in 2021.
A member of the family Holcodiscidae. The type species is D. lerisae; genus also includes D. uhligi (Karakash, 1907), D. sayni (Joleaud, 1912) and "Metahoplites" postnodosum Vermeulen et al. (2017).
A member of Agoniatitida belonging to the family Pharciceratidae. The type species is E. formosum; genus also includes "Pharciceras" evolvens Bockwinkel, Becker & Ebbighausen (2009).
A member of the family Dzhulfitidae. The type species is L. lyriformis; genus also includes new species L. alius, L. paucis, L. plicatus and L. profundus, as well as Alibashites stepanovi Korn & Ghaderi in Korn et al. (2015).
A member of Perisphinctoidea belonging to the family Simoceratidae and the subfamily Parasimoceratinae. The type species is P. venturii; genus also includes P. pseudostenonis.
A member of Ceratitida belonging to the group Meekocerataceae and the family Ophiceratidae.
Research
A modern review of the palaeobiology of heteromorph ammonoids is published by Hoffmann et al. (2021), including details of their anatomy, buoyancy, locomotion, predators, diet, palaeoecology, and extinction.[37]
A study on the morphology and ontogeny of whorl profiles of the late Anisian ceratitid ammonites is published by Bischof et al. (2021).[39]
An exceptionally preserved specimen of Sigaloceras enodatum, providing information on the anatomy of ammonite muscles, is described from the Middle Jurassic (Callovian) Kellaways Sand Member of Colne Gravel (Gloucestershire, United Kingdom) by Cherns et al. (2021), who evaluate the implications of this specimen for the knowledge of the swimming mechanism of ammonites.[40]
Soft parts of a perisphinctid belonging to the genus Subplanites, separated from the conch either taphonomically or during a failed predation, are described from the Tithonian conservation deposits of Wintershof (southern Germany) by Klug et al. (2021).[41]
The first physical compression experiments on model ammonite septa are performed by Johnson et al. (2021), who attempt to determine whether the increasingly complex fractal margins of ammonite septa might have evolved to increase resistance to shell-crushing predators.[42]
A study aiming to determine the function of complex septa in the ammonite shell, providing evidence of a relationship between septal complexity and capacity for liquid retention within chambers of the shell, likely improving buoyancy regulation, is published by Peterman et al. (2021).[43]
Two specimens of Peltoceras athleta having both female and male features are described from Callovian limestone beds in Méron near Montreuil-Bellay (France) by Frau & Boursicot (2021), who interpret these specimens as cases of intersexuality in ammonites.[44]
Soft tissue remains preserved within the conch of a specimen of Proleymeriella schrammeni from the Albian of Germany are described by Hoffmann et al. (2021).[45]
A study on the arrangement in space and probable nature of hook-like structures found with specimens of Rhaeboceras halli is published by Smith et al. (2021), who interpret these structures as representing part of the brachial crown armature, and propose a hypothetical reconstruction of an ammonite brachial crown.[46]
A study on the systematics and phylogeny of the genus Aegocrioceras is published by Weinkauf, Hoffmann & Wiedenroth (2021).[47]
A study on the hydrostatic properties of Baculites compressus, and on their implications for the knowledge of the swimming capabilities and ecology of this ammonite and orthoconic cephalopods in general, is published by Peterman & Ritterbush (2021).[48]
Revision of the fossil material of Parapuzosia seppenradensis, including historic specimens from Europe and the United States and new material from England and Mexico, and a study on the ontogeny, distribution and evolution of this ammonite, is published by Ifrim et al. (2021).[49]
A study on the habitat depth preferences of Hoploscaphites constrictus from the European Boreal Chalk Sea, as indicated by stable isotope thermometry of aptychi and by data from predation marks on the scaphitid moulds, is published by Machalski et al. (2021).[50]
A study on the relationship between sutural complexity and body size in Cretaceous ammonites is published by Pérez-Claros (2021).[51]
New fossil material with shell features that characterize early cephalopods is described from the Cambrian (Terreneuvian) Bonavista Formation (Canada) by Hildenbrand et al. (2021), who interpret this finding as possibly representing the earliest cephalopods known to date, potentially pushing the origin of cephalopods back in time by about 30 million years, to the time before the first occurrence of euarthropods.[63]
Two specimens of Syrionautilus libanoticus preserving soft parts, including a specimen showing an imprint of the conch, are described from the Cenomanian of Hadjoula (Lebanon) by Klug et al. (2021).[64]
A study on the diversity patterns and spatial structure of belemnite assemblages in Western Tethys Ocean during the Early Jurassic is published by Neige, Weis & Fara (2021).[65]
A study on chemistry, organization and genesis of circular structures (superficially resembling chromatophores) preserved in coleoid cephalopod specimens from the Jurassic of Germany and the Cretaceous of Lebanon is published by Klug et al. (2021).[67]
A well-preserved soft-body imprint of a fossil squid is described from the lower Oligocene of the Krasnodar region (Russia) by Mironenko et al. (2021), who interpret this finding as the first unquestionable representative of Teuthida in the fossil record known to date, and report preservation of fish remains in the stomach contents of this squid, indicative of its piscivorous diet.[68]
A specimen of Jeletzkyteuthis coriacea holding a specimen of Parabelopeltis flexuosa in its arms, with the apex very close to its jaws, is described from the ToarcianPosidonia Shale (Germany) by Klug et al. (2021), who interpret this finding as a case of frozen predatory behaviour of two different octobrachian species.[69]
Klompmaker & Landman (2021) describe the oldest drill holes produced by octopodoids in lucinid bivalve specimens from the Campanian of South Dakota, indicating that the drilling habit evolved early in the evolutionary history of Octopodoidea.[71]
A member of the family Costellariidae. The type species is "Mitra" sturi Hoernes & Auinger (1880); genus also includes "Mitra" neugeboreni Hoernes & Auinger (1880), as well as new species A. claviformis and A. filipescui.
A member of the family Columbellidae. The type species is "Columbella" bellardii Hörnes (1852); genus also includes "Columbella (Anachis)" austriaca Hoernes & Auinger (1880) and "Pyrene (Anachis) bellardii" grussbachensis Csepreghy-Meznerics (1969; raised to the rank of a separate species Auingeria grussbachensis).
A member of the family Hemisinidae. The type species is "Cerithium" palense Rouault (1850); genus also includes "Potamides" granosus Doncieux (1908), as well as new species A. falsiacum.
A member of the family Columbellidae. The type species is "Columbella (Nitidella)" karreri Hoernes & Auinger (1880); genus also includes "Columbella (Nitidella)" embryonalis Boettger (1902) and "Columbella (Nitidella)" katharinae Hoernes & Auinger (1880).
A member of the family Costellariidae; a replacement name for Micromitra Bellardi (1888). The type species is "Voluta" obsoleta Brocchi (1814); genus also includes new species B. kovaci, B. baluki, B. fedosovi and B. dacica.
A land snail possessing morphological traits intermediate between members of the family Pupinidae and other members of Cyclophoroidea. Genus includes new species B. artiukhini.
A member of the family Mitridae. The type species is F. paratethyca (a replacement name for Mitra austriaca Csepreghy-Meznerics, 1950); genus also includes new species F. ottomanica.
A Trochidae member; The type species is "Gibbula" brebioni Landau, Van Dingenen & Ceulemans (2017). Genus includes G. saccoi (a replacement name for Gibbula protumida Sacco, 1896).
A member of the family Strombidae. Genus includes "Dolomena" bruneiensis Harzhauser, Raven & Landau (2018), "Strombus" glaber Martin (1879), "Strombus" karikalensis Cossmann (1903), "Strombus" triangulatus Martin (1879) and "Strombus" varinginensis Martin (1899), as well as new species L. seriaensis.
A member of the family Triviidae. The type species is "Cypraea" pisolina Lamarck, (1810); genus also includes new species L. annae, L. bertaccinii, L. pliopisolina, L. pseudocalva and L. ventricostata.
A member of the family Columbellidae. The type species is "Columbella (Anachis)" dujardini Hoernes & Auinger (1880); genus also includes "Columbella (Anachis)" zitteli Hoernes & Auinger (1880).
A member of the family Gosseletinidae. Genus includes several species formerly assigned to the genera Gosseletina and Globodoma, as well as new species N. shamaevi and N. skuini.
A member of Pleurotomariida. The type species is "Pleurotomaria" coronata Münster (1841); genus also includes new species N. ernstkittli and possibly also N? turris.
A member of the family Charitodoronidae. The type species is "Charitodoron" tauzini Lozouet (1991); genus also includes new species O. lestrillensis, O. poustagnacensis and O. verdunensis.
A member of the family Fasciolariidae; a replacement name for Fusus sublamellosus Boettger (1906). Originally described as a species of Pseudolatirus; Harzhauser, Landau & Vermeij (2024) tentatively placed it in the genus Takashius.[141]
A member of the family Seraphsidae. The type species is "Terebellum" diversiornatum Eames (1952); genus also includes "Terebellum" saudiensis Abbass (1972) and "Terebellum" olympiae Rolando (2001).
A member of the family Megatrigoniidae. Genus includes "Trigonia" jimbonis Strand (1928), "Trigonia" sawatai Yehara (1923), "Apiotrigonia" subjimboi Miroljubov in Vereshchagin et al. (1965) and "Trigonia" subovalis Jimbo (1894).
A member of the family Megatrigoniidae. Genus includes "Trigonia" syrdariensis Arkhangelsky (1916), "Trigonia" turcmenensis Arkhangelsky (1916) and "Megatrigonia" tagamensis Belyakova (1980).
A member of the family Megatrigoniidae. Genus includes "Apiotrigonia" mikasaensis Tashiro (1979), "Apiotrigonia" ashizawaensis Saito (1962), "Apiotrigonia" crassoradiata Nakano (1957), "Apiotrigonia" futabaensis Maeda & Kawabe (1967), "Apiotrigonia" hetonaiana Tashiro (1978), "Apiotrigonia" hironoensis Maeda & Kawabe (1967), "Apiotrigonia" jimboi Nakano (1957), "Apiotrigonia" obliquecostata Nakano (1957), "Apiotrigonia" obsoleta Nakano (1957), "Apiotrigonia" orikiensis Maeda & Kawabe (1967), "Apiotrigonia" undulosa Nakano (1957) and "Apiotrigonia" utoensis Tashiro (1972), as well as M. yabei (a replacement name for Trigonia subovalis var. minor Yabe & Nagao, 1925).
A member of the family Megatrigoniidae. Genus includes "Trigonia" cragini Stoyanow (1949), as well as S. scotti (a replacement name for Trigonia kitchini Stoyanow, 1949).
A member of Trigoniida belonging to the family Frenguelliellidae. The type species is "Poultoniella" jaworskii Echevarría, Damborenea & Manceñido (2021); genus might also include "Trigonia" malladae Choffat (1885).
A member of the family Buchotrigoniidae. Genus includes "Buchotrigonia" etayoi Villamil (1992), "Trigonia" humboldtii Buch (1839), "Buchotrigonia" kauffmani Villamil (1992), "Buchotrigonia" perezi Villamil (1992) and "Vaugonia niranohamensis" santamariae Geyer (1973; raised to the rank of the species V. santamariae).
A tusk shell. Genus includes new species M. hayasakai and M. okumurai, as well as "Plagioglypta" furcata Waterhouse (1980), "Pl." girtyi Knight (1940), "Pl." subannulata Easton (1962), "Dentalium" ingens De Koninck (1843), "D." meekianum Geinitz (1866), "Pl." prosseri Morningstar (1922), "Dentalium" priscum Münster in Goldfuss (1842) and "D." herculeum De Koninck (1863).
A study on the relationship between temperature and diversity in the fossil record of marine molluscs over the last 145 million years is published by Boag, Gearty & Stockey (2021).[187]
A study on the relationship between the species richness of shallow-marine molluscs, the number of ecological functional groups, and oceanic temperature in the fossil record of New Zealand over the last ~40 million years is published by Womack et al. (2021).[188]
^ abKorn, D.; Ghaderi, A.; Devaere, L.; Khanehbad, M. (2021). "Ammonoids from the Carboniferous-Permian boundary of east-central Iran". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 301 (3): 335–345. doi:10.1127/njgpa/2021/1015. S2CID239690567.
^ abcdefghiÉnay, R.; Mangold, C. (2021). "Jurassic ammonites from Central Saudi Arabia (Jebel Tuwaiq and adjacent areas)". Revue de Paléobiologie, Genève. 40 (1): 1–197. doi:10.5281/zenodo.5008788.
^Nakada, K.; Goto, M.; Meister, C.; Matsuoka, A. (2021). "The late Pliensbachian (Early Jurassic) ammonoid Amaltheus in Japan: systematics and biostratigraphic and paleobiogeographic significance". Journal of Paleontology. 95 (5): 1004–1021. Bibcode:2021JPal...95.1004N. doi:10.1017/jpa.2021.39. S2CID236379379.
^Galácz, A. (2021). "Kheraiceras, the Callovian (Middle Jurassic) dimorphic ammonite genus in the South Hungarian Mecsek and Villány Mts". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 299 (3): 275–290. doi:10.1127/njgpa/2021/0969. S2CID233601499.
^ abcdKment, K. (2021). "Biostratigraphy of the Hettangian Stage in the Northern Calcareous Alps (Austria, Bavaria) with ammonoids and their classification into biohorizons". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 301 (3): 233–282. doi:10.1127/njgpa/2021/1007. S2CID239627293.
^ abSimms, M. J.; Edmunds, M. (2021). "Ammonites from the Lias Group (Lower Jurassic, Sinemurian and Pliensbachian) of White Park Bay, Co. Antrim, Northern Ireland". Proceedings of the Geologists' Association. 132 (6): 743–763. Bibcode:2021PrGA..132..743S. doi:10.1016/j.pgeola.2021.06.001. S2CID237768384.
^Wilmsen, M.; Wondrejz, C.; Püttmann, T.; Kennedy, W. J. (2021). "Cibolaites petraschecki sp. nov., a new collignoniceratine ammonite from the Brießnitz Formation of Saxony (Turonian, Elbtal Group, Germany)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 300 (2): 189–199. doi:10.1127/njgpa/2021/0984. S2CID236420288.
^Misaki, A.; Tsujino, Y. (2021). "A New Species of the Heteromorph Ammonoid Didymoceras from the Upper Cretaceous Izumi Group in Shikoku, Southwestern Japan, and Its Evolutionary Implications". Paleontological Research. 25 (2): 127–144. doi:10.2517/2020PR010. S2CID233029551.
^ abcdKorn, D. (2021). "Revision of Tornoceras typus (Sandberger & Sandberger, 1851) – an iconic Devonian ammonoid of a clade with slow morphological evolution". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 302 (2): 147–167. doi:10.1127/njgpa/2021/1026. S2CID243895395.
^ abTongtherm, K.; Nabhitabhata, J.; Tuanapaya, S. (2021). "Two new Triassic eutomocerid ammonoid cephalopods (Ammonoidea: Ceratitidae) from southeastern peninsular Thailand". Phuket Marine Biological Center Research Bulletin. 78: 147–153. doi:10.14456/pmbcrb.2021.11.
^Zong, P.; Becker, R. T.; Ma, X. (2021). "The ammonoid Gonioclymenia fauna from the Upper Devonian (upper Famennian) of western Junggar, northwestern China". Geological Journal. 56 (12): 5967–5986. doi:10.1002/gj.4182. S2CID236251674.
^ abMietto, P.; Jin, X.; Manfrin, S.; Lu, G.; Shi, Z.; Gianolla, P.; Huang, X.; Preto, N. (2021). "Onset of sedimentation near the Carnian/Norian boundary in the northwestern Sichuan Basin: New evidence from ammonoid biostratigraphy and zircon U–Pb geochronology". Palaeogeography, Palaeoclimatology, Palaeoecology. 567: Article 110246. Bibcode:2021PPP...56710246M. doi:10.1016/j.palaeo.2021.110246. hdl:11392/2437547. S2CID233573583.
^Goy, A.; Comas-Rengifo, M. J. (2021). "Nejdia (Hildoceratidae, Ammonoidea) in the Toarcian (Lower Jurassic) of the Iberian Peninsula. Systematics, phylogenetic affinities and palaeobiogeography". Historical Biology. 33 (12): 3173–3190. doi:10.1080/08912963.2020.1853719. S2CID233815255.
^Samaniego-Pesqueira, A.; Moreno-Bedmar, J. A.; Álvarez-Sánchez, L.E.Ó.N.F. (2021). "Upper Aptian ammonite biostratigraphy of the Agua Salada and Mural formations, Sonora State, northwest Mexico". Journal of South American Earth Sciences. 112, Part 1: Article 103558. Bibcode:2021JSAES.11203558S. doi:10.1016/j.jsames.2021.103558. S2CID244185303.
^Mitta, V. V. (2021). "Ammonites and Stratigraphy of the Upper Bajocian Strenoceras niortense Zone in the Interfluve between the Kuban and Urup Rivers (Northern Caucasus)". Paleontological Journal. 55 (12): 1458–1475. doi:10.1134/S0031030121120042. S2CID247387371.
^Tabrizi, N. G.; Ghaderi, A.; Ashouri, A. R.; Korn, D. (2021). "A new record of the Permian ammonoid family Cyclolobidae from Julfa (NW Iran)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 302 (2): 221–230. doi:10.1127/njgpa/2021/1029. S2CID243915631.
^ abKorn, D. (2021). "Revision of Tornoceras frechi Wedekind, 1918 and consequences for the Late Devonian ammonoid stratigraphy". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 300 (3): 291–302. doi:10.1127/njgpa/2021/0991. S2CID236231776.
^Lehmann, J.; Bayliss, H. M. (2021). "The heteromorph ammonite Tropaeum (Tropaeum) evolutum sp. nov. from the Hythe Formation, Lower Greensand Group (basal upper Aptian, Lower Cretaceous) of Maidstone, Kent, UK". Cretaceous Research. 132: Article 105110. doi:10.1016/j.cretres.2021.105110. S2CID244808527.
^Zaitsev, B. A. (2021). "Early Jurassic (Late Sinemurian–Early Pliensbachian) Ammonites from the Limestone Boulders of Bodrak River Basin, Southwest Crimea". Stratigraphy and Geological Correlation. 29 (4): 411–433. Bibcode:2021SGC....29..411Z. doi:10.1134/S0869593821040043. S2CID236640510.
^Johnson, E. H.; DiMarco, B. M.; Peterman, D. J.; Carter, A. M.; Allmon, W. D. (2021). "Did shell-crushing predators drive the evolution of ammonoid septal shape?". Paleobiology. 47 (4): 666–679. Bibcode:2021Pbio...47..666J. doi:10.1017/pab.2021.13. S2CID234854806.
^Weis, R.; Dzyuba, O. S.; Dietze, V.; Riegraf, W. (2021). "A new belemnite species from the Aalenian of the Swabian Alb (SW Germany) and its position in the phylogeny of Megateuthididae (Belemnitida)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 300 (1): 23–31. doi:10.1127/njgpa/2021/0977. ISSN0077-7749. S2CID234855507.
^ abMoneer, S. M.; Bazeen, Y. S.; Kassab, W. (2021). "Taxonomy and paleobiogeography of the Maastrichtian cephalopods from the Abu Monqar-west Dakhla stretch, Western Desert, Egypt". Historical Biology. 33 (12): 3530–3541. doi:10.1080/08912963.2021.1876043. S2CID234799991.
^Niko, S. (2021). "Late Silurian orthocerid cephalopods from the Suberidani Group, Tokushima Prefecture, Southwest Japan". Bulletin of the Tohoku University Museum. 20: 1–7. hdl:10097/00132016.
^Brauckmann, C.; Koch, L. (2021). "Nachweise der Nautiloideen-Familie Jovellaniidae im givetischen Massenkalk (Schwelm-Kalk) von Schwelm (Nordrhein-Westfalen)". Dortmunder Beiträge zur Landeskunde - naturwissenschaftliche Mitteilungen. 50: 75–86.
^Pieroni, V.; Prinoth, H. (2021). "Mojsvaroceras gianii n. sp. and related coiled nautiloids from the Middle Triassic of Lombardy (Northern Italy)". Bollettino della Società Paleontologica Italiana. 60 (2): 99–110. doi:10.4435/BSPI.2021.11 (inactive 2024-11-20).{{cite journal}}: CS1 maint: DOI inactive as of November 2024 (link)
^Halder, K. (2021). "Nautiloid Biostratigraphy of the Jurassic of Kutch, India: An Exploration of Bio- and Chrono-stratigraphic Potential of Nautiloids". In S. Banerjee; S. Sarkar (eds.). Mesozoic Stratigraphy of India. Society of Earth Scientists Series. Springer. pp. 291–309. doi:10.1007/978-3-030-71370-6_10. ISBN978-3-030-71369-0. S2CID242464491.
^ abcFang, X.; Pohle, A.; Kröger, B.; Aubrechtová, M.; Burrett, C.; Zhang, Y.; Zhang, Y. (2021). "Phylogeny of Middle–Late Ordovician lituitid cephalopods based on cladistic analysis". Journal of Systematic Palaeontology. 19 (9): 633–650. doi:10.1080/14772019.2021.1944354. hdl:10138/346432. S2CID237885587.
^Mironenko, A. A.; Boiko, M. S.; Bannikov, A. F.; Arkhipkin, A. I.; Bizikov, V. A.; Košťák, M. (2021). "First discovery of the soft-body imprint of an Oligocene fossil squid indicates its piscivorous diet". Lethaia. 54 (5): 793–805. doi:10.1111/let.12440. S2CID238646997.
^ abcBrunetti, M. M.; Cresti, M. (2021). "Tre nuove specie di Gasteropodi per il Pliocene di Orciano Pisano". Bollettino Malacologico. 57 (1): 106–113.
^ abcdefgRaven, J. G. M. (2021). "Notes on molluscs from NW Borneo 8. Stromboidea (Gastropoda, Caenogastropoda). Addendum, including the description of two new genera and new extinct species". Vita Malacologica. 20: 23–50.
^ abcdeChirli, C.; Forli, M. (2021). The Family Rissoidae Gray, 1847 from Miocene to Present-day in the Mediterranean Basin. Edizioni Danaus. pp. 1–466. ISBN978-8-89-760331-3.
^ abcChernyshev, A. V.; Goedert, J. L. (2021). "New species of latest Eocene/earliest Oligocene microgastropods (Heterobranchia: Orbitestellidae and Omalogyridae) from the Gries Ranch Formation, Lewis County, Washington State, USA". Zootaxa. 4981 (3): 469–480. doi:10.11646/zootaxa.4981.3.3. PMID34186710. S2CID235686756.
^ abcdeHarzhauser, M. (2021). "The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda)—a synopsis". Zootaxa. 4902 (1): zootaxa.4902.1.1. doi:10.11646/zootaxa.4902.1.1. PMID33757113. S2CID232339137.
^Fehse, D.; Bertaccini, E.; Gardella, F.; Tabanelli, C. (2021). "Revision of the Mediterranean Pliocene Apiocypraea F.A. Schilder, 1925 (Gastropoda: Eocypraeidae) with special consideration of shells of the "Spungone" area, Romagna, Northern Italy". Archiv für Molluskenkunde: International Journal of Malacology. 150 (2): 147–171. doi:10.1127/arch.moll/150/147-171. S2CID245406059.
^ abcdefghijklmnopqrLozouet, P. (2021). "Buccinoidea (Mollusca, Gastropoda, Neogastropoda) de l'Oligocène supérieur (Chattien) du bassin de l'Adour (Sud-Ouest de la France)". Cossmanniana. 22: 3–129.
^Raven, J. G. M. (2021). "Notes on molluscs from nw Borneo 9. Harpidae (Neogastropoda), with the description of Asiaharpa sarawakiana gen. nov., spec. nov". Vita Malacologica. 20: 51–60.
^ abcdefLozouet, P. (2021). "Turbinelloidea, Mitroidea, Olivoidea, Babyloniidae et Harpidae (Gastropoda, Neogastropoda) de l'Oligocène supérieur (Chattien) du bassin de l'Adour (Sud-Ouest de la France)". Cossmanniana. 23: 3–69.
^ abRaven, J. G. M. (2021). "Notes on molluscs from NW Borneo 7. Babyloniidae (Gastropoda, Neogastropoda)". Vita Malacologica. 20: 14–22.
^ abcdLi, Z.; Li, Y.; Zhang, Y.; Xie, K.; Li, Z. (2021). "New Discovery of Oligocene Gastropod Opercula from the Yehucheng Formation in Northwestern China". Acta Geologica Sinica (English Edition). 96: 61–70. doi:10.1111/1755-6724.14727. S2CID236413377.
^Cabrera, F.; Breure, A. S. H.; Norbis, W.; Martínez, S. (2021). "Description of a new Late Cretaceous species of Bulimulus Leach, 1814 (Orthalicoidea: Bulimulidae) using geometric morphometric analysis". Journal of Molluscan Studies. 87 (2): eyab006. doi:10.1093/mollus/eyab006.
^Groh, K. (2021). "Description of a new Canariella P. Hesse, 1918 (Stylommatophora: Canariellidae) from the Quaternary of Furteventura, Canary Islands". Basteria. Journal of the Netherlands Malacological Society. 85 (2): 126–129.
^ abcPetuch, E. J.; Berschauer, D. P. (2021). "Two new Cassis (Gastropoda: Cassidae) and a new Malea (Gastropoda: Tonnidae) from the Pliocene and Pleistocene Beds of southern Florida". The Festivus. 53 (1): 3–10. doi:10.54173/F531003. S2CID240504008.
^ abcdefghGarvie, C. L. (2021). "Eight new species of Eocene Gastropoda from Texas based on the Megahan collection". Proceedings of the Biological Society of Washington. 134 (1): 196–208. doi:10.2988/0006-324X-134.1.196. S2CID240502013.
^Jiang, R.; Shi, C.; Zhang, H.; Cai, H.; Long, X.; Wang, S.; Engel, M. S. (2022). "Comment on "Mother snail labors for posterity in bed of mid-Cretaceous amber" by A. Jochum, T. Yu and T.A. Neubauer, Gondwana Research, Volume 97, Pages 68–72". Gondwana Research. 101: 21–23. Bibcode:2022GondR.101...21J. doi:10.1016/j.gr.2021.07.015. ISSN1342-937X.
^Yu, T.; Wang, H.; Fang, Y.; Salvador, R. B.; Li, S.; Jarzembowski, E. A.; Yu, H.; Zhang, H. (2021). "Non-marine gastropods from the Cretaceous–Paleogene transition in the Pingyi Basin, eastern China". Proceedings of the Geologists' Association. 133: 40–46. doi:10.1016/j.pgeola.2021.10.003. S2CID244516164.
^Kawase, M.; Ichihara, T. (2021). "A new species of Ellobium (Gastropoda: Panpulmonata: Ellobiidae) from the Miocene Mizunami Group in Gifu Prefecture, central Japan". Bulletin of the Mizunami Fossil Museum. 48: 1–7. doi:10.50897/bmfm.48.0_1.
^Fehse, D. (2021). "Zur Identität von Eotrivia faracii (de Gregorio, 1880) und Beschreibung einer neuen Art in der Gattung Eotrivia F. A. Schilder, 1924 (Mollusca, Gastropoda)". Conchylia. 52 (1–2): 79–84.
^Balashov, I. (2021). "The first records of mollusks from mid-Cretaceous Hkamti amber (Myanmar), with the description of a land snail, Euthema myanmarica n. sp. (Caenogastropoda, Cyclophoroidea, Diplommatinidae)". Journal of Paleontology. 95 (5): 994–1003. Bibcode:2021JPal...95..994B. doi:10.1017/jpa.2021.26. S2CID233690461.
^ abcMazaev, A. V. (2021). "Lower Carboniferous Gastropods of Dombar Hills (Viséan–Serpukhovian Boundary Beds, Western Kazakhstan)". Paleontological Journal. 55 (8): 876–905. doi:10.1134/S0031030121080049. S2CID245330703.
^Yu, T. (2021). "New data on gastropod genus Hirsuticyclus (Caenogastropoda, Cyclophoridae) from mid-Cretaceous Kachin amber". In S-C. Chang; D. Zheng (eds.). Mesozoic Biological Events and Ecosystems in East Asia. Vol. 521. The Geological Society of London. pp. 153–160. doi:10.1144/SP521-2021-127. S2CID244091697. {{cite book}}: |journal= ignored (help)
^Biskupič, K. (2021). "A new species of Nitidiclavus (Neogastropoda: Drilliidae) from the Miocene Paratethys and an overview of the paleoecology and distribution of related species in the Cainozoic of Europe". Basteria. Journal of the Netherlands Malacological Society. 85 (2): 163–176.
^ abcdFehse, D. (2021). "Contributions to the knowledge of the Triviidae. XLI: The Mystery of Oligocene Triviidae". Conchylia. 52 (1–2): 43–54.
^Dominici, S.; Forli, M. (2021). "Lower Pliocene molluscs from southern Tuscany (Italy)". Bollettino della Società Paleontologica Italiana. 60 (1): 69–98. doi:10.4435/BSPI.2021.04 (inactive 2024-11-20).{{cite journal}}: CS1 maint: DOI inactive as of November 2024 (link)
^Frese, M.; Ponder, W. (2021). "Proviviparus talbragarensis gen. et sp. nov., the first viviparid snail from the Late Jurassic of Australia". Alcheringa: An Australasian Journal of Palaeontology. 45 (3): 344–353. Bibcode:2021Alch...45..344F. doi:10.1080/03115518.2021.1940276. S2CID238777174.
^Harzhauser, M.; Landau, B. M.; Vermeij, G. J. (2024). "The Dolicholatiridae and Fasciolariidae (Gastropoda, Buccinoidea) of the Miocene Paratethys Sea". Zootaxa. 5470 (1): 1–92. doi:10.11646/zootaxa.5470.1.1.
^ abMaxwell, S. J.; Rymer, T. L.; Congdon, B. C. (2021). "Resolving phylogenetic and classical nomenclature: A revision of Seraphsidae Jung, 1974 (Gastropoda: Neostromboidae)". Zootaxa. 4990 (3): 401–453. doi:10.11646/zootaxa.4990.3.1. PMID34186750. S2CID235686526.
^Landau, B. M.; da Silva, C. M. (2021). "The genus Sveltia (Gastropoda, Cancellariidae) in the Atlantic Pliocene of Iberia with a new species from the Cenozoic Mondego Basin of Portugal". Journal of Paleontology. 96: 143–151. doi:10.1017/jpa.2021.83. S2CID246488911.
^Sanfilippo, R.; Kočí, T.; Bosio, G.; Collareta, A.; Ekrt, B.; Malinverno, E.; Di Celma, C.; Urbina, M.; Bianucci, G. (2021). "An investigation of vermetid reefs from the Miocene of Peru, with the description of a new species". Journal of South American Earth Sciences. 108: Article 103233. Bibcode:2021JSAES.10803233S. doi:10.1016/j.jsames.2021.103233. S2CID233920362.
^ abYu, T.; Salvador, R. B.; Wang, H.; Fang, Y.; Neubauer, T. A.; Li, S.; Zhang, H.; Wan, X. (2021). "A latest Cretaceous gastropod fauna from the Jiaolai Basin of East Asia". Cretaceous Research. 121: Article 104736. Bibcode:2021CrRes.12104736Y. doi:10.1016/j.cretres.2020.104736. S2CID233547414.
^Tomida, S.; Sano, H.; Kase, T. (2021). "An Additional New Species of Turbo (Marmarostoma) (Gastropoda: Turbinidae) from the Middle Miocene of the Izu Peninsula, Central Japan". Paleontological Research. 25 (4): 375–378. doi:10.2517/2021PR006. S2CID238861250.
^Southgate, P. C.; Militz, T. A.; Roberts, M. (2021). "A new species of Umbilia Jousseaume, 1884 (Mollusca: Cypraeidae) from the Australian Pliocene". Molluscan Research. 41 (3): 214–221. doi:10.1080/13235818.2021.1962588. S2CID238231852.
^ abCooper, M. R.; Leanza, H. A. (2021). "On the Buchotrigoniidae (Cretaceous Trigoniida), their palaeobiogeography, evolution and classification". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 301 (2): 119–134. doi:10.1127/njgpa/2021/0999. S2CID238736681.
^ abcdeCeccolini, F.; Cianferoni, F. (2021). "Five replacement names for fossil bivalve genera (Mollusca: Bivalvia)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 302 (2): 231–234. doi:10.1127/njgpa/2021/1025. ISSN0077-7749. S2CID243903591.
^ abcdefghijkCooper, M. (2021). "On the Apiotrigoniinae (Bivalvia, Trigoniida): their palaeobiogeography, evolution and classification". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 300 (2): 145–174. doi:10.1127/njgpa/2021/0982. S2CID242113854.
^ abFukuda, H.; Ishida, S.; Watanabe, T.; Yoshimatsu, S.; Haga, T. (2021). "The bivalve genus Sunetta Link, 1807 (Heterodonta: Veneridae) of Japan and the neighbouring waters – a taxonomic revision with the descriptions of three new species". Molluscan Research. 41 (2): 107–171. doi:10.1080/13235818.2021.1937016. S2CID236520379.
^Brunetti, M. M.; Cresti, M. (2021). "Syndesmyella pliominor n. sp. (Bivalvia: Semelidae) per il Pliocene spagnolo". Bollettino Malacologico. 57 (1): 92–96.
^ abcMitchell, S. F. (2021). "Rudist bivalves (Hippuritoidea) from the Clifton Limestone (Lower Campanian) of western Jamaica and a reassessment of the genus Vaccinites in the Americas". Carnets de Géologie. 21 (14): 315–341. doi:10.2110/carnets.2021.2114. S2CID235802666.
^Damborenea, S.; Blodgett, R. B.; Hodges, M. S.; Hodges, C. L. (2021). "Weyla santuccii n. sp. (Bivalvia, Pectinidae) from the Pogibshi Formation, south-central Alaska, the oldest species known of the genus in western North America". New Mexico Museum of Natural History and Science Bulletin. 82: 57–70.
^Zhang, Y.; Liu, Y.; Shao, T.; Wang, Q.; Qin, J.; Zhang, W.; Liang, T. (2021). "New Maikhanellids from the Early Cambrian Strata of Zhangjiagou Section, South Shaanxi, China". Acta Geologica Sinica (English Edition). in press. doi:10.1111/1755-6724.14726. S2CID236414682.
О символах денежных единиц см. Знаки валют. Символы со сходным начертанием: Ѻ · ѻ · Ꟁ · ꟁ · Ⱉ · ⱉ · Ⱒ · ⱒ Символ валюты ¤ Изображение ◄ ¡ ¢ £ ¤ ¥ ¦ § ¨ ► Характеристики Название currency sign Юникод U+00A4 HTML-код ¤ или &&#...
lbsPara pemimpin pemberontakan abad ke-19 dan 20 menentang penguasa Britania di negara-negara bagian Pra-MalaysiaMelaka Dol Said (1831–1832) Sarawak Rentap (1853–1863) Liu Shan Bang (1857) Syarif Masahor (1860–1862) Negeri Sembilan Tengku Antah ibni Yamtuan Radin (1872–1874) Perak Lela Pandak Lam (1875–1877) Ngah Ibrahim (1875–1877) Sultan Abdullah (1875–1877) Pahang Dato' Bahaman (1891–1894) Mat Kilau (1891–1894) Sabah Mat Salleh (1894–1905) Antanum (1915) Kelantan Tok Ja...
Professional American football team in Baltimore, Maryland, from 1953 to 1983 For other uses, see Baltimore Colts (disambiguation). Baltimore ColtsEstablished 1953Ended 1983Played in Baltimore, Maryland Baltimore Colts logoBaltimore Colts wordmarkLogoWordmarkLeague/conference affiliations National Football League (1953–1983) Western Conference (1953–1969) Coastal Division (1967–1969) American Football Conference (1970–1983) AFC East (1970–1983) UniformTeam colorsRoyal blue, whit...
UppsalaUpsal La cathédrale d'Uppsala, achevée au XVe siècle. Administration Pays Suède Province historique Uppland Comté Uppsala Commune Uppsala Paroisse Danmark (sv), Gamla Uppsala (sv), Gottsunda (sv), Helga Trefaldighet (sv), Vaksala (sv) Statut de ville 1286 Démographie Population 168 096 hab. (2017) Densité 3 447 hab./km2 Géographie Coordonnées 59° 50′ 00″ nord, 17° 40′ 00″ est Superficie ...
la Whataroaanglais : Whataroa River La rivière Whataroa s’écoulant dans la Mer de Tasman Caractéristiques Longueur ~105 km [note 1] Bassin collecteur fleuve Whataroa Cours Source les Alpes du Sud · Coordonnées 43° 27′ 10″ S, 170° 22′ 30″ E Embouchure Mer de Tasman · Altitude 0 m · Coordonnées 43° 07′ 09″ S, 170° 15′ 09″ E Géographie Principaux affluents · Rive droite Perth Pays travers�...
Curcuma Curcuma zedoaria Klasifikasi ilmiah Kerajaan: Plantae (tanpa takson): Angiospermae (tanpa takson): Monokotil (tanpa takson): Commelinids Ordo: Zingiberales Famili: Zingiberaceae Subfamili: Zingiberoideae Tribus: Zingibereae Genus: CurcumaL. Spesies Lihat teks Curcuma adalah sebuah genus tanaman dari keluarga Zingiberaceae yang terdiri dari tanaman seperti Kunyit dan berbagai jenis temu-temuan. Genus tanaman ini berasal dari Asia Tenggara, Cina bagian selatan, Anak benua India, Papua ...
غيهب الغيهب رئيس المحكمة العليا في المنصب3 ربيع الأول 1434 هـ – 1 ربيع الأول 1442 هـ العاهل الملك سلمان بن عبد العزيز آل سعود عبد الرحمن الكليّة خالد اللحيدان معلومات شخصية الميلاد سنة 1939 ملهم الوفاة 11 يناير 2024 (84–85 سنة) الرياض مكان الدفن مقبرة شمال الرياض ...
Wess et Dori GhezziDori Ghezzi et Wess à Sanremo en 1973Informations généralesPays d'origine ItalieLocalisation MilanGenre Pop, musique italienneDate de création 1972Date de fin 1979Langue ItalienLabel Durium Records (en)Composition du groupeMembres Wess, Dori Ghezzimodifier - modifier le code - modifier Wikidata Wess & Dori Ghezzi est un duo italo-américain formé au début des années 1970 par la chanteuse italienne Dori Ghezzi (née le 30 mars 1946 à Lentate sul Seveso en Italie)...
ليك ماري شعار الإحداثيات 28°45′27″N 81°19′45″W / 28.7575°N 81.329166666667°W / 28.7575; -81.329166666667 [1] تاريخ التأسيس 7 أغسطس 1973 تقسيم إداري البلد الولايات المتحدة[2][3] التقسيم الأعلى مقاطعة سيمينول خصائص جغرافية المساحة 25.704179 كيلومتر مربع25.7...
Logo (2015) Lia Rumantscha is an organization that promotes Romansh language usage and study. Established in 1919, its seat is in Chur. The organization is a member of the Federal Union of European Nationalities since 1954.[1] External links Lia Rumantscha in English Archived Website References ^ Lia Rumantscha. Federal Union of European Nationalities. Retrieved 25 February 2024. Authority control databases International ISNI VIAF National France BnF data Germany United States Czech R...
American writer (1924–1987) This article is about the American writer. For other people with the same name, see James Baldwin (disambiguation). It has been suggested that James Baldwin in France be merged into this article. (Discuss) Proposed since February 2024. James BaldwinBaldwin in 1969BornJames Arthur Jones(1924-08-02)August 2, 1924New York City, U.S.DiedDecember 1, 1987(1987-12-01) (aged 63)Saint-Paul-de-Vence, FranceResting placeFerncliff Cemetery, Westchester County, New YorkO...
United Kingdom emergency legislation United Kingdom legislationHealth Protection (Coronavirus, Restrictions) (Entry to Venues and Events) (England) Regulations 2021Statutory InstrumentCitation2021 No. 1416Introduced bySecretary of State for Health and Social CareTerritorial extent EnglandDatesMade13 December 2021Laid before Parliament13 December 2021Commencement15 December 2021 (2021-12-15)Other legislationMade underPublic Health (Control of Disease) Act 1984Status: Expire...
Research field that lies at the intersection of machine learning and computer security Not to be confused with Generative adversarial network. Part of a series onMachine learningand data mining Paradigms Supervised learning Unsupervised learning Online learning Batch learning Meta-learning Semi-supervised learning Self-supervised learning Reinforcement learning Curriculum learning Rule-based learning Quantum machine learning Problems Classification Generative modeling Regression Clustering Di...
How a country's total GDP is distributed amongst its population Share of income of the top 1% for selected developed countries, 1975 to 2015 In economics, income distribution covers how a country's total GDP is distributed amongst its population.[1] Economic theory and economic policy have long seen income and its distribution as a central concern. Unequal distribution of income causes economic inequality which is a concern in almost all countries around the world.[2][3 ...
Ancient path connecting the Great Lakes waterway system with the Mississippi River system Chicago PortageElevation589 ft (180 m)Traversed byMud Lake (historic), Illinois and Michigan Canal (historic), Chicago Sanitary and Ship Canal, several railroads, numerous roads including I-55 (Stevenson Expressway)Location(historic dividing point) 3100 West 31st Street, Chicago, Cook County, Illinois, USRangeValparaiso MoraineCoordinates41°50′14″N 87°42′8″W / 41.83722°N 87.702...
Roman poet (43 BC – AD 17/18) For other uses, see Ovid (disambiguation). OvidAnonymous 18th-century engravingBornPublius Ovidius Naso[a]20 March 43 BC[1]Sulmo, Italy, Roman RepublicDiedAD 17 or 18 (age 59–61)Tomis, Scythia Minor, Roman EmpireOccupationPoetGenreElegy, epic, dramaNotable worksMetamorphoses Publius Ovidius Naso (Latin: [ˈpuːbliʊs ɔˈwɪdiʊs ˈnaːso(ː)]; 20 March 43 BC – AD 17/18), known in English as Ovid (/ˈɒvɪd/ OV-id),[2][3] was...
Garudasana Garudasana ovvero posizione dell'aquila o posizione di Garuda, è una posizione di Hatha Yoga. Il nome deriva dalla divinità indusista Garuḍa ovvero il re degli uccelli, nonché cavalcatura alata della divinità Visnù, e dal sanscrito āsana che significa posizione. Visnù e Lakshmi cavalcano Garuḍa, in un dipinto nella città di Bundi nella regione del Rajasthan Scopo della posizione La posizione ha lo scopo di rafforzare gli arti inferiori e di migliorare l'equilibrio. Posi...
British Labour Party politician, former cabinet minister and author Not to be confused with Lord Windermere. This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This biography of a living person needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately from the ...
