†Thecachampsa antiqua Leidy 1852
Reptilia - Crocodylia - Crocodylidae
Alternative combinations: Crocodilus antiqua, Crocodylus antiquus
Synonyms: Gavialosuchus americana Sellards 1915, Thecachampsa contusor Cope 1868, Thecachampsa sericodon Cope 1868, Thecachampsa sicaria Cope 1869, Tomistoma americana Sellards 1915, Tomistoma lusitanica Antunes 1961
Belongs to Thecachampsa according to A. C. Myrick 2001
Sister taxa: Thecachampsa marylandica, Thecachampsa minor, Thecachampsa serrata
Average measurements (in mm): skull 900.0 x 333.0
Estimated body mass: 1.49 tons based on skull length