Dryosaurus grandis

"Dryosaurus" grandis
Temporal range: Early Cretaceous, 112 Ma
↓
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Order: Saurischia
Suborder: Theropoda
Clade: Coelurosauria
Genus: †Dryosaurus
Species: † ". grandis
Binomial name
"Dryosaurus" grandis
Lull, 1911
Synonyms

"Dryosaurus" grandis is a dubious species of theropod dinosaur known from remains found in the Arundel Formation of Maryland, with a complex history of classification. Matthew and Brown (1922) formerly classified it under the name Ornithomimus affinis (Gilmore, 1920)[1] which was, in turn, a replacement name for Dryosaurus grandis (Lull, 1911).[2] Gilmore (1920) placed Dryosaurus grandis in the genus Ornithomimus, which rendered Lull's name secondarily preoccupied by Ornithomimus grandis (Marsh, 1890) and necessitated the replacement name Ornithomimus affinis.[3] However, the holotype specimen of Ornithomimus grandis comes from the Eagle Sandstone of Montana and is presumed lost,[4] while Smith and Galton (1990) could not identify the Arundel taxon beyond the level of Theropoda.[5]

References

  1. ↑ Matthew, W.D. and B. Brown. 1922. The family Deinodontidae, with notice of a new genus from the Cretaceous of Alberta. Bulletin of the American Museum of Natural History 46(6):367-385.
  2. ↑ Lull, R.S. 1911. Systematic paleontology of the Lower Cretaceous deposits of Maryland: Vertebrata. Maryland Geological Survey: Lower Cretaceous 183-211.
  3. ↑ Gilmore, C.W.. 1920. Osteology of the carnivorous Dinosauria in the United States National Museum, with special reference to the genera Antrodemus (Allosaurus) and Ceratosaurus. Bulletin of the United States National Museum 110:1-154.
  4. ↑ Osborn, H.F. (1916). "Skeletal adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus." Bulletin of the American Museum of Natural History, 35(43), 733-771.
  5. ↑ Smith and Galton, 1990. Osteology of Archaeornithomimus asiaticus (Upper Cretaceous, Iren Dabasu Formation, People's Republic of China). Journal of Vertebrate Paleontology.
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