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Diplodocus longus Marsh 1878 (diplodocine)

Reptilia - Saurischia - Diplodocidae

PaleoDB taxon number: 52920

Full reference: O. C. Marsh. 1878. Principal characters of American Jurassic dinosaurs. Part I. American Journal of Science and Arts 16:411-416

Belongs to Diplodocus according to S. G. Lucas et al. 2006

Sister taxa: Diplodocus carnegii, Diplodocus hallorum

Type specimen: YPM 1920, a partial skeleton. Its type locality is Felch Quarry 1, Garden Park (YPM), which is in a Kimmeridgian/Tithonian channel sandstone/claystone in the Morrison Formation of Colorado.

Ecology: ground dwelling herbivore

Average measurements (in mm): coracoid length 388.4, femur 1547.4 x 208.0, femur circumference 562.5, fibula length 1097.3, fibula circumference 295.0, humerus 1020.9 x 155.9, humerus circumference 451.8, radius 765.8 x 88.0, radius circumference 254.4, scapula 1217.2 x 228.0, tibia 1056.3 x 158.0, tibia circumference 404.2, ulna 791.2 x 107.4, ulna circumference 291.2

Estimated body mass: 14.2 tons based on femur circumference, femur length, and humerus circumference