[D] Ornithomimus affinis
Describer
Gilmore, 1920
Time
Cretaceous Early
Classification
Saurischia Theropoda Incertae Sedis Nomina Dubia
Diet
Carnivore
Fossilsite
Arundel Formation, Prince Georges County, Maryland, US
Info
USNM 5453,5652,5684,5703,5704,6107,6108,8456 this problematic species consists of a syntype suite (more than one specimen and more than one organism) of unassociated foot elements and was collected in the late 1880\\\'s by J.B. Hatcher and Arthur Bibbins.
The species \\\"Ornithomimus\\\" affinis was named by Gilmore in 1920 in Bulletin 110 of the U.S. National Museum. Some of the material had been previously described by Marsh (1888) as \\\"Allosaurus medius\\\" and by Lull (1911) as \\\"Dryosaurus grandis\\\".
This species was transferred to a new genus, Archaeornithomimus in 1972 by Russell, based on sharing curved pedal unguals with the Chinese species. However the Chinese species actually has straight pedal unguals, the curved ones coming from the tyrannosaurid Alectrosaurus. So the two species need not be in the same genus.
Gilmore, 1920
Time
Cretaceous Early
Classification
Saurischia Theropoda Incertae Sedis Nomina Dubia
Diet
Carnivore
Fossilsite
Arundel Formation, Prince Georges County, Maryland, US
Info
USNM 5453,5652,5684,5703,5704,6107,6108,8456 this problematic species consists of a syntype suite (more than one specimen and more than one organism) of unassociated foot elements and was collected in the late 1880\\\'s by J.B. Hatcher and Arthur Bibbins.
The species \\\"Ornithomimus\\\" affinis was named by Gilmore in 1920 in Bulletin 110 of the U.S. National Museum. Some of the material had been previously described by Marsh (1888) as \\\"Allosaurus medius\\\" and by Lull (1911) as \\\"Dryosaurus grandis\\\".
This species was transferred to a new genus, Archaeornithomimus in 1972 by Russell, based on sharing curved pedal unguals with the Chinese species. However the Chinese species actually has straight pedal unguals, the curved ones coming from the tyrannosaurid Alectrosaurus. So the two species need not be in the same genus.