1923 in paleontology

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Paleontology, palaeontology or [palæontology (from Greek: paleo, "ancient"; ontos, "being"; and logos, "knowledge") 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 mankind has 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 1923.

Arthropoda

newly named insects

Name	Novelty	Status	Authors	Age	Unit	Location	Notes	Images
Archimyrmex[2]	Gen et sp nov	valid	Cockerell	Lutetian	Green River Formation	USA	Extinct Myrmeciin ant genus, type species Archimyrmex rostratus

Archosauromorpha

Newly named dinosaurs

Data courtesy of George Olshevsky's dinosaur genera list.^[3]

Name	Status	Authors		Age	Unit	Location	Notes	Images
Altispinax[4]	Nomen dubium.	Friedrich von Huene		Berriasian-Valanginian	Obernkirchen Sandstein	Germany	An indeterminate theropod. New genus for "Megalosaurus" dunkeri Dames 1884.
Lambeosaurus[5]	Valid taxon	Parks		middle-late Campanian	Dinosaur Park Formation	Canada	A lambeosaurine hadrosaurid.
Lametasaurus[6]	Nomen dubium.	Matley		late Maastrichtian	Lameta Formation	India	A composite of abelisaurid and titanosaur remains.
Pentaceratops[7]	Valid taxon	Henry Fairfield Osborn		late Campanian	Kirtland Formation Fruitland Formation	United States	A chasmosaurine ceratopsid.
"Protiguanodon"[8]	Junior synonym of Psittacosaurus.	Henry Fairfield Osborn		Barremian	Öösh Formation	Mongolia	A junior synonym of the psittacosaurid ceratopsian Psittacosaurus.
Protoceratops[9]	Valid taxon	Granger	Gregory	middle-late Campanian	Djadochta Formation	Mongolia	A protoceratopsid ceratopsian.
"Protrachodon"[10]	Nomen nudum. Junior synonym of Orthomerus.	Nopcsa
Psittacosaurus[11]	Valid taxon	Henry Fairfield Osborn		Barremian	Öösh Formation	Mongolia	A psittacosaurid ceratopsian.
Thecocoelurus[4]	Nomen dubium.	Friedrich von Huene		Barremian	Wessex Formation	England	An indeterminate ?abelisauroid. New genus for "Thecospondylus" daviesi Seeley, 1888.

Pterosaurs

New taxa

Name	Status	Authors		Age	Unit	Location	Notes
Anurognathus	Valid	Döderlein		Tithonian	Solnhofen Limestone	Germany	An anurognathid.

Synapsids

Non-mammalian

Name	Status	Authors	Age	Unit	Location	Notes	Images
Burnetia	Valid	Robert Broom		Late Permian	Dicynodon Assemblage Zone	South Africa	A biarmosuchian, a member of Burnetiidae.
Dinophoneus	Junior synonym	Robert Broom		Middle Permian	Tapinocephalus Assemblage Zone	South Africa	A titanosuchid. Junior synonym of Jonkeria.

References

1. 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.
2. 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.
3. Olshevsky, George. "Dinogeorge's Dinosaur Genera List". Retrieved 2008-08-07.
4. Huene, F. von. 1923. Carnivorous Saurischia in Europe since the Triassic. Bull. Geol. Soc. America 34: pp. 449-458.
5. Parks, W.A. 1923. Corythosaurus intermedius, a new species of trachodont dinosaur. Univ. Toronto Stud. (Geol. Ser.) 13: pp. 1-32.
6. Matley, C.A. 1923. Note on an armoured dinosaur from the Lameta beds of Jubbulpore. Rec. Geol. Survey India 55 (2): pp. 105-109.
7. Osborn, H.F. 1923. A new genus and species of Ceratopsia from New Mexico, Pentaceratoos stennbergii. Amer. Mus. Novitates 93: pp. 1-3.
8. Osborn, H.F. 1924. Psittacosaurus and Protiguanodon: two Lower Cretaceous ignanodonts from Mongolia. Amer. Mus. Novitates 127: pp. 1-16.
9. Granger, W. and W.K. Gregory. 1923 Protoceratops andrewsi, a preceratopian dinosaur from Mongolia. Amer. Museum Novitates 42: pp. 1-9.
10. Nopcsa, F. 1923. Die Familien der Reptilien. Fortschr. Geol. Palaeontol. 2: pp. 1-210.
11. Osborn, H.F. 1923. Two Lower Cretaceous dinosaurs from Mongolia. Amer. Mus. Novitates 95: pp. 1-10.