PaleoDB taxon number: 57568
Full reference: H.-D. Sues and P. E. Olsen. 1990. Triassic vertebrates of Gondwanan aspect from the Richmond Basin of Virginia. Science 249:1020-1023
Sister taxa: none
Type specimen: USNM 437632, a maxilla. Its type locality is Tomahawk locality, USNM 39981, which is in a Carnian lacustrine - small mudstone in the Vinita Formation of Virginia.