Coelosaurus antiquus

"Coelosaurus" antiquus
Temporal range: Late Cretaceous, 70 Ma
↓
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Order: Saurischia
Family: †Ornithomimidae
Genus: †"Coelosaurus"
Leidy, 1865 (preoccupied)
Species

†"Coelosaurus" antiquus
Leidy, 1865

Synonyms

Ornithomimus antiquus
(Leidy, 1865)

"Coelosaurus" antiquus ("antique hollow lizard") is a species of theropod dinosaurs. It was named by Joseph Leidy in 1865 for two tibiae found in the Navesink Formation of New Jersey.

Drawing of a tibia.

This species was later reclassified as a member of the genus Ornithomimus in 1979 by Donald Baird and John R. Horner as Ornithomimus antiquus,[1] and this was followed by some later researchers.[2] However, others have not followed this classification, and have noted that there is no justification for the classification of the New Jersey specimens in a genus known only from western North America. David Weishampel in 2004 considered "C." antiquus to be indeterminate among ornithomimosaurs, and therefore a nomen dubium.[3]

In 1979, Baird and Horner discovered that the name "Coelosaurus" was preoccupied by another dubious taxon (based on a single vertebra), named Coelosaurus by an anonymous author now known to be Richard Owen in 1854.[3]

See also

References

  1. ↑ Baird D., and Horner, J., 1979, "Cretaceous dinosaurs of North Carolina", Brimleyana 2: 1-28
  2. ↑ Sullivan, (1997). "A juvenile Ornithomimus antiquus (Dinosauria: Theropoda: Ornithomimosauria), from the Upper Cretaceous Kirtland Formation (De-na-zin Member), San Juan Basin, New Mexico." New Mexico Geological Society Guidebook, 48th Field Conference, Mesozoic Geology and Paleontology of the Four Corners Region. 249-254.
  3. 1 2 Weishampel, D.B. (2004). "Another Look at the Dinosaurs of the East Coast of North America. En (Colectivo Arqueológico-Paleontológico Salense, Ed.)." Actas de las III Jornadas sobre Dinosaurios y su Entorno. 129-168. Salas de los Infantes, Burgos, España.
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