ammonites
banner
Gateway to the Paleobiology Database
Camptosaurus dispar Marsh 1879 (bird foot dinosaur)

Reptilia - Neornithischia

PaleoDB taxon number: 52880

Alternative combinations: Camptonotus dispar, Comptonotus dispar

Synonyms: Brachyrophus altarkansanus Cope 1878 (no. 67776), Camptosaurus browni Gilmore 1909 (no. 64602), Camptosaurus medius Marsh 1894 (no. 54251), Camptosaurus nanus Marsh 1894 (no. 54252), Symphyrophus musculosus Cope 1878 (no. 65181)

Full reference: O. C. Marsh. 1879. Notice of new Jurassic reptiles. American Journal of Science and Arts 18:501-505

Belongs to Camptosaurus according to W. Zheng et al. 2013

Sister taxa: none

Type specimens:

  • Camptosaurus dispar: YPM 1877, a partial skeleton. Its type locality is Quarry 13, Como Bluff (YPM), which is in a Kimmeridgian/Tithonian crevasse splay sandstone/claystone in the Morrison Formation of Wyoming.
  • Brachyrophus altarkansanus:
  • Camptosaurus browni: USNM 4282. Its type locality is Quarry 13, Como Bluff (YPM), which is in a Kimmeridgian/Tithonian crevasse splay sandstone/claystone in the Morrison Formation of Wyoming.
  • Camptosaurus medius: YPM 1885, a partial skeleton. Its type locality is Quarry 13, Como Bluff (YPM), which is in a Kimmeridgian/Tithonian crevasse splay sandstone/claystone in the Morrison Formation of Wyoming.
  • Camptosaurus nanus: U.S.N.M. Cat. No. 2210, a partial skeleton (postcranial skeleton including right fore limb and both hind limbs). Its type locality is Quarry 13, Como Bluff (YPM), which is in a Kimmeridgian/Tithonian crevasse splay sandstone/claystone in the Morrison Formation of Wyoming.
  • Symphyrophus musculosus: Its type locality is Cope Quarry IV, Cope's Nipple, which is in a Kimmeridgian/Tithonian dry floodplain horizon in the Morrison Formation of Colorado.

Ecology: ground dwelling herbivore

Average measurements (in mm): coracoid length 63.4, femur length 441.9, fibula length 207.0, humerus length 281.1, ilium length 244.0, ischium length 545.0, radius length 156.1, scapula 300.2 x 59.0, tibia length 410.7, ulna length 206.6

Estimated body mass: 197.7 kg based on femur length