Reptilia - Dinosauria - Diplodocidae

Full reference: R. T. Bakker. 1998. Dinosaur mid-life crisis: the Jurassic-Cretaceous transition in Wyoming and Colorado. Lower and Middle Cretaceous Terrestrial Ecosystems, New Mexico Museum of Natural History and Science Bulletin 14:67-77

Parent taxon: Diplodocidae according to R. T. Bakker 1998

Sister taxa: Apatosaurinae, Apatosaurus, Dicraeosaurinae, Dinheirosaurus, Diplodocinae, Dyslocosaurus, Supersaurus

Subtaxa: Eobrontosaurus yahnahpin

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Type: Apatosaurus yahnahpin

Ecology: ground dwelling herbivore