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Paleontology or palaeontology is the study of prehistoric life forms on Earth through the examination of plant and animal fossils.^[1] This includes the study of body fossils, tracks (ichnites), burrows, cast-off parts, fossilised feces (coprolites), palynomorphs and chemical residues. Because humans have encountered fossils for millennia, paleontology has a long history both before and after becoming formalized as a science. This article records significant discoveries and events related to paleontology that occurred or were published in the year 1957.

Arthropoda

Crustaceans

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes
Enoplocytia tenuidigitata^[2]	Sp nov	Valid	Woods	Albian	Roma Formation	Australia	An erymid
Glyphea oculata^[2]	Sp nov	Valid	Woods	Upper Albian	Tambo Formation	Australia	A glypheid
Tillocheles^[2]	Gen et sp nov	Valid	Woods	Upper Albian	Tambo Formation	Australia	A stenochirid, type species is T. shannonae

Insects

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes	Images
Ameghinoia^[3]	Gen et sp nov	jr synonym	Viana & Haedo Rossi	Middle Eocene	Ventana Formation	Argentina	A Myrmeciine ant jr synonym of Archimyrmex The type species is A. piatnitzkii

Molluscs

Gastropods

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes
Aplexa ricei^[4]	Sp nov	valid	Russell	Eocene Ypresian	Okanagan Highlands Allenby Formation	Canada British Columbia	An aplexine physid bladder snail
Ferrissia arionoides^[4]	Sp nov	valid	Russell	Eocene Ypresian	Okanagan Highlands Allenby Formation	Canada British Columbia	An ancyline planorbid ramshorn snail
Micropyrgus camselli^[4]	Sp nov	valid	Russell	Eocene Ypresian	Okanagan Highlands Allenby Formation	Canada British Columbia	A Hydrobiid mud snail
Physa saxarubrensis^[4]	Sp nov	valid	Russell	Eocene Ypresian	Okanagan Highlands Allenby Formation	Canada British Columbia	A physine physid bladder snail
Stagnicola tulameenensis^[4]	Sp nov	valid	Russell	Eocene Ypresian	Okanagan Highlands Allenby Formation	Canada British Columbia	A lymnaeine lymnaeid pond snail

Archosauromorpha

Newly named dinosaurs

Data are courtesy of George Olshevky's dinosaur genera list.^[5]

Name	Status	Authors		Age	Unit	Location	Notes	Images
Lexovisaurus^[6]	Valid	Robert Hoffstetter		Middle Jurassic (Callovian)	Oxford Clay Formation	United Kingdom France	A stegosaurid.
Lusitanosaurus^[7]	Valid	Albert-Félix de Lapparent	Zbyszewski	Early Jurassic	Unnamed unit	Portugal	A basal thyreophoran.

Synapsids

Non-mammalian

Name	Status	Authors		Age	Unit	Location	Notes	Images
Colbertosaurus^[8]	Valid	Minoprio		Middle Triassic	Potrereillos Formation	Argentina	A traversodontid; a replacement name for Colbertia Minoprio (1954)
Scalenodontoides^[9]	Valid	Crompton and Ellenberger		Late Triassic (late Norian-Rhaetian)	Lower Elliot Formation	Lesotho South Africa	A traversodontid.

References

^ Gini-Newman, Garfield; Graham, Elizabeth (2001). Echoes from the past: world history to the 16th century. Toronto: McGraw-Hill Ryerson Ltd. ISBN 9780070887398. OCLC 46769716.
^ ^a ^b ^c Woods, James T. (1957). "Macrurous Decapods from the Cretaceous of Queensland". Memoirs of the Queensland Museum. 13 (3): 155–175.
^ Dlussky, G.M. (2012). "New Fossil Ants of the Subfamily Myrmeciinae (Hymenoptera, Formicidae) from Germany". Paleontological Journal. 46 (3): 288–292. doi:10.1134/s0031030111050054. S2CID 83891156.
^ ^a ^b ^c ^d ^e Russell, L. S. (1957). "Mollusca from the Tertiary of Princeton, British Columbia". National Museum of Canada Bulletin. 147: 84–95.
^ Olshevsky, George. "Dinogeorge's Dinosaur Genera List". Archived from the original on 2011-07-15. Retrieved 2008-08-07.
^ Hoffstetter, R. 1957. Quelques observations sur le Stegosaurines. Bulletin du Muséum National d’Histoire Naturelle, Paris (2nd series) 29: pp. 537- 547.
^ Lapparent, A.F. de and G. Zbyszewski. 1957. Les dinosauriens du Portugal. Mémoires du Service géologique du Portugal 2: pp. 1-63.
^ Mionoprio, J. L., 1957, Nota aclaratoria sobre Colberta muralis: Ameghiniana, v. 1, p. 144.
^ A. W. Crompton and F. Ellenberger. 1957. On a new cynodont from the Molteno Beds and the origin of the tritylodontids. Annals of the South African Museum 44:1-14