PaleoDB taxon number: 172422
Full reference: R. C. Wood. 1976. Stupendemys geographicus, the world's largest turtle. Breviora 436:1-31
Sister taxon: Stupendemys souzai
Type specimen: MCNC 244, a partial skeleton (medial portion of the carapace with associated left femur, fragments of the scapulocoracoid and a cervical vertebra). Its type locality is West of Quebrado Tio Gregorio, which is in a Huayquerian fluvial-deltaic siliciclastic in the Urumaco Formation of Venezuela.
Ecology: aquatic herbivore-carnivore
Average measurements (in mm): carapace 2239.2 x 1887.1
Estimated body mass: 926.0 kg based on carapace length