Full reference: S. W. Williston. 1903. North American plesiosaurs, part 1. Geological Series Field Museum of Natural History 3(1):1-77
Sister taxa: none
Type specimen: USNM 4989, a partial skeleton. Its type locality is Near Delphos (USNM 4989, Brachauchenius lucasi type locality), which is in a Turonian/Turonian marine limestone in Kansas.
Ecology: aquatic carnivore
Total: 5 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.