PaleoDB taxon number: 319105
Alternative combinations: Apatosaurus yahnahpin, Eobrontosaurus yahnahpin
Full reference: J. Filla and P. Redman. 1994. A new species of sauropod, Apatosaurus yahnahpin. Wyoming Geological Association Field Conference 1994:123-134
Type specimen: TATE 001. Its type locality is Bertha Quarry, Como Bluff, which is in a Kimmeridgian/Tithonian levee mudstone in the Morrison Formation of Wyoming.
Ecology: ground dwelling herbivore
Average measurements (in mm): femur length 1598.0, tibia length 1001.0
Estimated body mass: 17.5 tons based on femur length