Misplaced Pages

Pseudocrypturus Temporal range: 55.8–50.3 Ma PreꞒ Ꞓ O S D C P T J K Pg N Early Eocene
Head and neck of the holotype specimen in the Smithsonian Institution
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Infraclass:	Palaeognathae
Order:	†Lithornithiformes
Family:	†Lithornithidae
Genus:	†Pseudocrypturus (Houde, 1988)
Species
†Pseudocrypturus cercanaxius

Pseudocrypturus is a genus of extinct paleognathous bird. One species is known, Pseudocrypturus cercanaxius. It is a relative of such modern birds as ostriches. It lived in the early Eocene. The holotype fossil is in the collection of the Smithsonian's National Museum of Natural History. It has catalog number USNM 336103. It was collected from the Fossil Butte Member, Green River Formation, Lincoln County, Wyoming.

Taxonomy

Pseudocrypturus means false tinamou. The species name cercanaxius comes from ancient Greek words kerkion, tail, and anaxios, worthless, in reference to the rudimentary pygostyle of this species.

Footnotes

1. "Pseudocrypturus". paleobiodb.org. Retrieved 2021-09-23.
2. Hinton, A. C. (1996)
3. Houde, Peter W. (1988)

References

• Hinton, A. C.; Lang, W. D.; et al. (1996). Edwards, Marcia A. (ed.). Nomenclator Zoologicus. Vol. 9. Regents Park, London: Zoological Society of London. p. 479.
• Houde, Peter W. (1988). "Paleognathous Birds from the Early Tertiary of the Northern Hemisphere". Publications of the Nuttall Ornithological Club. 22. Cambridge MA: Nuttall Ornithological Club.

v t e Palaeognath genera
Kingdom: Animalia Phylum: Chordata Class: Aves Avemetatarsalia see Avemetatarsalia Theropoda see Theropoda Maniraptora see Maniraptora Palaeognathae see below↓
Palaeognathae Palaeognathae †Asteriornis? †Eremopezus? †Limenavis? †Lithornithidae Calciavis Fissuravis Lithornis Paracathartes Pseudocrypturus Struthioniformes †Remiornis? †Geranoididae? Eogeranoides Galligeranoides? Geranodornis Palaeophasianus Paragrus †Palaeotididae? Palaeotis Galligeranoides? †Eogruidae? Eogrus Sonogrus †Ergilornithidae? Amphipelargus Ergilornis Sinoergilornis Urmiornis Struthionidae †Orientornis †Pachystruthio? Struthio Notopalaeognathae see below↓
Notopalaeognathae Rheiformes †Opisthodactylidae Diogenornis? Opisthodactylus Rheidae †Heterorhea †Hinasuri †Protorhea Rhea †Dinornithiformes Dinornis Megalapteryx Emeidae Anomalopteryx Emeus Euryapteryx Pachyornis Tinamidae †Miniothura †Querandiornis †Roveretornis Tinaminae Crypturellus Nothocercus Tinamus Nothurinae Eudromia Nothoprocta Nothura Rhynchotus Taoniscus Tinamotis Novaeratitae Apterygidae Apteryx †Proapteryx †Aepyornithidae Aepyornis Mullerornis Casuariiformes †Diogenornis? Casuariidae Casuarius Dromaius †Emuarius
Ootaxa Diamantornis Incognitoolithus Medioolithus Namornis Psammornis Tsondabornis
Category

• Bird genera
• Eocene genus extinctions
• Lithornithidae
• Paleogene birds of North America
• Fossil taxa described in 1988
• Paleontology in Wyoming
• Green River Formation