Taowu liui

Taowu liui
Temporal range: Early Pleistocene (Gelasian) 2.5 Ma
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Suborder: Feliformia
Family: Felidae
Subfamily: Machairodontinae
Genus: Taowu
Jiangzuo, Werdelin, and Sun et al., 2022
Species:
T. liui
Binomial name
Taowu liui
Jiangzuo, Werdelin, and Sun et al., 2022

Taowu is an extinct genus of machairodonts, a type of saber-toothed cat. It lived during the Early Pleistocene about 2.5 million years ago in East Asia. So far, only one skull is known, found in northern China. Based on this, a relatively small representative of the saber-toothed cats can be reconstructed, which only reached the size of a present-day leopard. In its dentition characteristics, it mediates between phylogenetic older forms such as Amphimachairodus and younger members such as Homotherium. The genus was scientifically described in 2022, but the find material was recovered as early as the 1930s.

Description

Taowu was a rather small representative of the saber-toothed cats. It reached about the size of a present-day leopards. Found so far is a nearly complete skull of 23.5 cm length and 13.4 cm width, measured across the zygomatic arches. Only the articular surface on the occipital bone is missing from this one. In top view, the skull was relatively slender, comparatively narrower than in Homotherium or Xenosmilus, and possessed a rounded snout region. The snout did not taper behind the canine, but continuously increased in width posteriorly. Likewise, a cranial narrowing behind the orbits was only rather weakly pronounced. In lateral view, the frontal line showed a gentle uparching, and the nasal opening was recessed and concavely indented relative to the premaxilla. The incisor row thus appeared much more prominent than in, for example, Amphimachairodus. In plan view, the frontal area was broad. The nasal bones widened posteriorly. The infraorbital foramen was at the level of the fourth premolar, as was the anterior edge of the orbit. Bony ridges attached to the frontal bone, which united to form a parietal crest. The zygomatic arch bulged strongly dorsally. On the underside of the skull, the tympanic bulla was markedly distended. As a diagnostic feature, the glenoid fossa was on a raised platform, more prominent than in Amphimachairodus, and was very wide. The anterior palatal window was at the level of the canine, and the largest posterior one was at the level of the third premolar.[1] The upper dentition consisted of three incisors, one canine, two premolars, and two molars per half of the jaw. The incisors formed a closed arch and increased in size from the inside to the outside. An additional cusp existed on the third incisor. The canine tooth protruded up to 7.4 cm from the jaw and was flat blade-shaped in cross-section. Both the anterior and posterior edges showed fine serration. Adjacent to the canine, a diastema separated the anterior from posterior dentition. Unlike some other saber-toothed cats such as Lokotunjailurus, the second premolar was absent. The third and thus most anterior premolar was not reduced in size, which differs from Homotherium, Lokotunjailurus, or Xenosmilus. Overall, the tooth appeared elongated at a length of just under 2 cm, as did the much larger posterior premolar, which grew to a good 3.4 cm in length. The typical pointed cusps, the para-, meta-, and protoconus, existed on this, the latter only being small in formation. The anterior shear edge, the parastyle, had an elongate shape, from which the anteriormost section, the preparastyle, stood out only imperceptibly.[1]

Fossil finds

The only fossil find of Taowu to date comes from Fancun, a locality about 36 km east of the township of Taigu, which in turn is part of the city of Jinzhong in the Chinese Shanxi province. The site and other areas in the region were excavated as early as the 1930s by American paleontologist Childs Frick. The various localities yielded numerous fossil materials, including several carnivores such as Homotherium as another representative of the saber-toothed cats, an extinct form of the lynx as well as the badger, Xenocyon as a member of the dogs, and the hyena Pachycrocuta. In addition, early relatives of modern horses also appeared. Especially the latter mentioned imply a predominant position in the Pleistocene, with the lower section being more likely.[2][3][1]

Classifications

Taowu is a genus from the extinct subfamily of saber-toothed cats (Machairodontinae) within the family of cats (Felidae). The saber-toothed cats represent an ancient branch of cats, which according to molecular genetics studies, forms the sister group of today's big cats and small cats. Their separation from the common branch occurred about 20 million years ago in the Lower Miocene.[4][5][6] The feature that gave saber-toothed cats their name is their significantly enlarged canine teeth. However, this shows certain variations within the kinship community, which led to the establishment of different subgroups. Here, the Machairodontini have saber-like canines, the Smilodontini have dagger-like canines, and the Metailurini have less conspicuously large canines. With its leopard-like body size, Taowu represents one of the smallest representatives of the saber-toothed cats of the Pliocene and Pleistocene. In overall dentition, the form can be assumed to be somewhat intermediate between the more primitive Amphimachairodus and the terminal form Homotherium within the Machairodontini. This is recognizable, for example, from the third premolars, which are only slightly reduced in size. On the other hand, the anteriorly shifted incisors also suggest certain more modern characteristics.[7]

The skull underlying the genus Taowu was found as early as the 1930s in Fancun, part of the city of Jinzhong, in the Chinese Shanxi province. It was mentioned in individual publications in which various researchers classified it as belonging to Machairodus, but a precise characteristic description was not developed.[8][9] Studies in 2022 necessitated a reevaluation. Jiangzuo Qigao and colleagues then established Taowu as a distinct form of saber-toothed cat in their scientific first description and presented the skull in detail. The generic name Taowu refers to the creature of the same name in Chinese mythology. Its striking characteristics include powerful tusks reminiscent of saber teeth. The species T. liui, introduced together with the genus, uses its epithet to honor the Chinese scientist Liu Jinyi, who had made significant contributions to the study of Pleistocene East Asian predators.[1]

Below is a phylogenetic tree of the Machairodontinae, based on the work of Jiangzuo and colleagues (2022).[1]

Machairodontinae 

References

  1. ^ a b c d e Jiangzuo, Q.; Werdelin, L.; Sun, Y. (2022). "A dwarf sabertooth cat (Felidae: Machairodontinae) from Shanxi, China, and the phylogeny of the sabertooth tribe Machairodontini". Quaternary Science Reviews. 284: Article 107517. Bibcode:2022QSRv..28407517J. doi:10.1016/j.quascirev.2022.107517.
  2. ^ Lorenzo Rook: The Plio-Pleistocene Old World Canis (Xenocyon) ex gr. falconeri. Bollettino della Societa Paleontologica Italiana 33 (1), 1994, S. 71–82
  3. ^ Véra Eisenmann und Tao Deng: Equus qingyangensis (Equidae, Perissodactyla) of the Upper Pliocene of Bajiazui, China: Evidence for the North American origin of an Old World lineage distinct from E. stenonis. Quaternaire 2 (2), 2005, S. 113–122
  4. ^ Paijmans, Johanna L.A.; Barnett, Ross; Gilbert, M. Thomas P.; Zepeda-Mendoza, M. Lisandra; Reumer, Jelle W.F.; De Vos, John; Zazula, Grant; Nagel, Doris; Baryshnikov, Gennady F.; Leonard, Jennifer A.; Rohland, Nadin; Westbury, Michael V.; Barlow, Axel; Hofreiter, Michael (2017). "Evolutionary History of Saber-Toothed Cats Based on Ancient Mitogenomics". Current Biology. 27 (21): 3330–3336.e5. doi:10.1016/j.cub.2017.09.033. PMID 29056454. S2CID 38005290.
  5. ^ Westbury, Michael V.; Barnett, Ross; Sandoval-Velasco, Marcela; Gower, Graham; Vieira, Filipe Garrett; De Manuel, Marc; Hansen, Anders J.; Yamaguchi, Nobuyuki; Werdelin, Lars; Marques-Bonet, Tomas; Gilbert, M Thomas P.; Lorenzen, Eline D. (2021). "A genomic exploration of the early evolution of extant cats and their sabre-toothed relatives". Open Research Europe. 1: 25. doi:10.12688/openreseurope.13104.2. PMC 7612286. PMID 35098251.
  6. ^ Hassanin, Alexandre; Veron, Géraldine; Ropiquet, Anne; Jansen Van Vuuren, Bettine; Lécu, Alexis; Goodman, Steven M.; Haider, Jibran; Nguyen, Trung Thanh (2021). "Evolutionary history of Carnivora (Mammalia, Laurasiatheria) inferred from mitochondrial genomes". PLOS ONE. 16 (2): e0240770. Bibcode:2021PLoSO..1640770H. doi:10.1371/journal.pone.0240770. PMC 7886153. PMID 33591975.
  7. ^ Piras, Paolo; Silvestro, Daniele; Carotenuto, Francesco; Castiglione, Silvia; Kotsakis, Anastassios; Maiorino, Leonardo; Melchionna, Marina; Mondanaro, Alessandro; Sansalone, Gabriele; Serio, Carmela; Vero, Veronica Anna; Raia, Pasquale (2018). "Evolution of the sabertooth mandible: A deadly ecomorphological specialization". Palaeogeography, Palaeoclimatology, Palaeoecology. 496: 166–174. Bibcode:2018PPP...496..166P. doi:10.1016/j.palaeo.2018.01.034. hdl:2158/1268434.
  8. ^ Germaine Petter und F. Clark Howell: Machairodus africanus Arambourg, 1970 (Carnivora Mammalia) du Villafranchien d'Aïn Brimba, Tunisie. Bulletin du Muséum National d'Histoire Naturelle 4 (9), 1987, S. 97–119 ([1])
  9. ^ Geraads, Denis; Kaya, Tanju; Tuna, Vahdet (2004). "A skull of Machairodus giganteus (Felidae, Mammalia) from the Late Miocene of Turkey" (PDF). Neues Jahrbuch für Geologie und Paläontologie - Monatshefte. 2004 (2): 95–110. doi:10.1127/njgpm/2004/2004/95.

Read other articles:

Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada Oktober 2022. FROGS Indonesia adalah perusahaan rintisan (startup) di bidang drone yang berasal dari Kabupaten Bantul, Daerah Istimewa Yogyakarta.[1] FROGS Indonesia mengembangkan taxi drone atau drone berpenumpang pertama di Indonesia. FROGS Indonesia mulai...

 

 

Hope Bay Gold Mine, main camp area Hope Bay Gold Mine, tailing pond The Hope Bay greenstone belt, also called the Hope Bay volcanic belt, is a 42 km (26 mi) long Archean greenstone belt in western portion of Kivalliq Region, Nunavut, Canada. It consists of mostly mafic volcanic rocks and contains three major gold deposits called Boston, Doris and Naartok. See also Wikimedia Commons has media related to Hope Bay Gold Mine. List of volcanoes in Canada Volcanism of Canada Volcanism of ...

 

 

Michael CeraLahirMichael Austin CeraPekerjaanaktorTahun aktif1998-sekarang Michael Austin Cera (lahir 7 Juni 1988) adalah aktor asal Kanada. Ia berperan sebagai Paulie Bleeker dalam film Juno yang dirilis pada tahun 2007. Ia juga bermain dalam beberapa film seperti Superbad, Extreme Movie dan Nick and Norah's Infinite Playlist. Filmografi Film Tahun Judul Peran Catatan 1999 Switching Goals Taylor 2000 Frequency Gordy Jr., Umur 10 Steal This Movie! america Hoffman, Age 7-8 Ultimate G's: ...

Washington's aides-de-camp during the American Revolutionary War were officers of the Continental Army appointed to serve on General George Washington's headquarters staff, with the rank of lieutenant colonel. The headquarters staff also included one military secretary, a full colonel. Washington had a small number of aides-de-camp at any given time, with relatively frequent turnover. A total of 32 men were appointed to these positions, and served between July 4, 1775, and December 23, 1783.&...

 

 

Ordinariat Militer SlowakiaVojenský ordinariátKatolik Katedral St SebastianLambang Ordinariat Militer SlowakiaLokasiNegara SlowakiaDekanatVikariat Angkatan Bersenjata[1]Vikariat Kepolisian[2]Vikariat Kementerian Kehakiman[3]Koordinat48°11′45.3″N 17°8′35.1″E / 48.195917°N 17.143083°E / 48.195917; 17.143083StatistikLuas49.035 km2 (18.933 sq mi)Populasi- Total(per 2021)22738[4][5]Paroki43[6...

 

 

Questa voce sugli argomenti conflitti e Colombia è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. Guerra d'indipendenza della Colombiaparte Guerre d'indipendenza ispanoamericaneBattaglia di Boyaca, opera di Martin Tovar y Tovar, Palazzo federale di CaracasData1810 – 1824 LuogoColombia EsitoIndipendenza della Colombia SchieramentiIndipendentistiRealisti Voci di guerre presenti su Wikipedia Manuale La g...

2022 Hong Kong drama film by Kearen Pang Mama's AffairPromotional posterTraditional Chinese阿媽有咗第二個Simplified Chinese阿媽有咗第二個Literal meaningMother Has a Second OneHanyu PinyinĀ mā yǒu zuo dì èr gè Directed byKearen PangWritten byKearen PangProduced byMani FokKearen PangStarring Teresa Mo Keung To Jer Lau Kaki Sham Tang Lai Ying ProductioncompaniesEmperor FilmFilm Development FundDistributed byEmperor FilmRelease date 11 August 2022 (2022-08-...

 

 

Subdivision of Kherson Oblast, Ukraine Raion in Kherson Oblast, UkraineSkadovskyi Raion Скадовський районRaion FlagCoat of armsCoordinates: 46°10′30.8706″N 32°53′11.4174″E / 46.175241833°N 32.886504833°E / 46.175241833; 32.886504833Country UkraineOblast Kherson OblastEstablished1923Admin. centerSkadovskSubdivisions9 hromadasGovernment • GovernorYegor UstynovArea[1] • Total5,255 km2 (2,029 s...

 

 

Cinema of Mexico List of Mexican films Mexican Animation Horror films 1890s 1900s 1910s 1920s 1930s 1940s 1940 1941 1942 1943 19441945 1946 1947 1948 1949 1950s 1950 1951 1952 1953 19541955 1956 1957 1958 1959 1960s 1960 1961 1962 1963 19641965 1966 1967 1968 1969 1970s 1970 1971 1972 1973 19741975 1976 1977 1978 1979 1980s 1980 1981 1982 1983 19841985 1986 1987 1988 1989 1990s 1990 1991 1992 1993 19941995 1996 1997 1998 1999 2000s 2000 2001 2002 2003 20042005 2006 2007 2008 2009 2010s 2010 ...

American baseball player Baseball player Trot NixonNixon with the Red Sox in 2005Right fielderBorn: (1974-04-11) April 11, 1974 (age 50)Durham, North Carolina, U.S.Batted: LeftThrew: LeftMLB debutSeptember 21, 1996, for the Boston Red SoxLast MLB appearanceJune 28, 2008, for the New York MetsMLB statisticsBatting average.274Home runs137Runs batted in555 Teams Boston Red Sox (1996, 1998–2006) Cleveland Indians (2007) New York Mets (2008) Career highlights a...

 

 

Pour les articles homonymes, voir Pancrace (homonymie), Saint Pancrace et Saint-Pancrace. Si ce bandeau n'est plus pertinent, retirez-le. Cliquez ici pour en savoir plus. Cet article ne cite pas suffisamment ses sources (avril 2012). Si vous disposez d'ouvrages ou d'articles de référence ou si vous connaissez des sites web de qualité traitant du thème abordé ici, merci de compléter l'article en donnant les références utiles à sa vérifiabilité et en les liant à la section « ...

 

 

此條目可能包含不适用或被曲解的引用资料,部分内容的准确性无法被证實。 (2023年1月5日)请协助校核其中的错误以改善这篇条目。详情请参见条目的讨论页。 各国相关 主題列表 索引 国内生产总值 石油储量 国防预算 武装部队(军事) 官方语言 人口統計 人口密度 生育率 出生率 死亡率 自杀率 谋杀率 失业率 储蓄率 识字率 出口额 进口额 煤产量 发电量 监禁率 死刑 国债 ...

Composition for piano by Frederic Chopin Ballade No. 2 redirects here. For the solo piano piece by Franz Liszt, see Ballade No. 2 (Liszt). Ballade No. 2Ballade by Frédéric ChopinKeyF majorOpus38Composed1839Published1839 The Ballade No. 2 in F major, Op. 38 is a ballade for solo piano by Frédéric Chopin, completed in 1839. A typical performance lasts six to eight minutes. History Ballade No. 2 Performed by Peter Johnston Problems playing this file? See media help. Chopin started composing ...

 

 

Since Alabama became a U.S. state in 1819, it has sent congressional delegations to the United States Senate and United States House of Representatives. Each state elects two senators to serve for six years, and members of the House to two-year terms. Before becoming a state, the Alabama Territory elected a non-voting delegate at-large to Congress from 1818 to 1819. These are tables of congressional delegations from Alabama to the United States Senate and the United States House of Represent...

 

 

Disambiguazione – Se stai cercando gli album intitolati Domenico Modugno, vedi Domenico Modugno (disambigua). Domenico ModugnoDomenico Modugno a Partitissima nel 1967 Nazionalità Italia GenereMusica leggeraMusica d'autoreCanzone napoletanaFolk Periodo di attività musicale1953 – 1994 EtichettaRCA Italiana, Fonit, Curci, Carosello, Panarecord Album pubblicati30 Studio26 Live4 Raccolte(numerose) Sito ufficiale Modifica dati su Wikidata · Manuale Domenico Modu...

Biberbach Lambang kebesaranLetak Biberbach di Augsburg NegaraJermanNegara bagianBayernWilayahSchwabenKreisAugsburgPemerintahan • MayorAlois Pfaffenzeller (FWV)Luas • Total35,90 km2 (1,390 sq mi)Ketinggian464 m (1,522 ft)Populasi (2013-12-31)[1] • Total3.436 • Kepadatan0,96/km2 (2,5/sq mi)Zona waktuWET/WMPET (UTC+1/+2)Kode pos86485Kode area telepon08271Pelat kendaraanASitus webwww.biberbach.de Untuk kegu...

 

 

British-American entertainment company HIT Entertainment LimitedFormerlyHenson International Television (1982–1989)[1]Gainbase PLC (1989)HIT Communications PLC (1989–1992)HIT Entertainment PLC (1992–2005)[2]Company typeSubsidiaryIndustryTelevision productionGenreEntertainmentChildren's programmingPredecessorsGullane EntertainmentLyrick StudiosFounded1982; 42 years ago (1982)FoundersJim HensonPeter OrtonSophie Turner LaingDefunct31 March 2016;&#...

 

 

この存命人物の記事には検証可能な出典が不足しています。信頼できる情報源の提供に協力をお願いします。存命人物に関する出典の無い、もしくは不完全な情報に基づいた論争の材料、特に潜在的に中傷・誹謗・名誉毀損あるいは有害となるものはすぐに除去する必要があります。出典検索?: 木村大作 – ニュース · 書籍 · スカラー · CiNii �...

Гранд-Эстфр. Grand Est Логотип Страна  Франция Статус Регион Включает 10 департаментов, 200 кантонов и 5195 коммун Административный центр Страсбург Крупнейшие города Реймс, Мец, Мюлуз, Нанси Председатель регионального совета Франк Леруа Префект Жозиан Шевалье Официальн�...

 

 

Place in Kara Region, TogoBandjeliBandjeliLocation in TogoCoordinates: 9°25′N 0°37′E / 9.417°N 0.617°E / 9.417; 0.617Country TogoRegionKara RegionPrefectureBassarTime zoneUTC + 0 Bandjeli is a village in the Bassar Prefecture in the Kara Region of north-western Togo.[1] References ^ Maplandia world gazetteer vte Bassar Prefecture of the Kara RegionCapital: Bassar Afoou Akalede Aketa Akomomboua Alidounpo Apoeydoumpo Atontebou Badao Baga Bakari Bakoule Ba...