Holotype tail vertebra (above) compared to same of Allosaurus (below)
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Clade:
Dinosauria
Clade:
Saurischia
Clade:
Theropoda
Family:
†Allosauridae
Genus:
†Antrodemus Leidy, 1870
Species:
†A. valens
Binomial name
†Antrodemus valens
(Leidy, 1870) Leidy, 1873
Synonyms
Poekilopleuron valens Leidy, 1870
Megalosaurus valens (Leidy, 1870) Nopcsa, 1901
Allosaurus valens (Leidy, 1870) Huene, 1932
Antrodemus ("chamber bodied") is a dubious genus of theropod dinosaur from the Upper Jurassic, probably the Morrison Formation, of Middle Park, Colorado. It contains one species, Antrodemus valens, first described and named as a species of Poekilopleuron by Joseph Leidy in 1870.
The Antrodemus skeleton on display at Princeton's Department of Geosciences in Guyot Hall (side view).
the two taxa, it might be named Antrodemus. In 1873, he amended his description and identified the species as Antrodemus valens. In 1920, Charles W. Gilmore...
conclusion that the tail vertebra named Antrodemus by Leidy was indistinguishable from those of Allosaurus and that Antrodemus should be the preferred name because...
otherwise European Miragaia. Antrodemus valens: May represent the same animal as Allosaurus; if so, the name Antrodemus would have priority. However,...
the United States National Museum: With Special Reference to the Genera Antrodemus (Allosaurus) and Ceratosaurus. United States National Museum Bulletin...
within Carnosauria, which then included forms similar to Megalosaurus and Antrodemus (the latter is probably equivalent to Allosaurus), even though Herrerasaurus...
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