PaleoDB taxon number: 63658
Full reference: E. D. Cope. 1868. Second contribution to the history of the Vertebrata of the Miocene period of the United States. Proceedings of the Academy of Natural Sciences of Philadelphia 1868:184-194
Type specimen: ANSP 11231, a set of vertebrae (two lumbar and two caudal vertebrae). Its type locality is James T. Thomas estate, which is in a Langhian offshore shelf horizon in the Calvert Formation of Maryland.
Ecology: scansorial piscivore