Genus: Megacephalosaurus SCHUMACHER, CARPENTER, & EVERHART, 2013
Etymology: Greek, mega, "large or great," Greek, cephalo, "head" and Greek,
sauros, "lizard."
Species:
eulerti SCHUMACHER,
CARPENTER, & EVERHART,
2013
Etymology: In honor of Otto C. Eulert, who graciously donated the specimen
to the Fort Hays Kansas State College Museum (now Sternberg Museum of Natural
History).
= Brachauchenius lucasi CARPENTER, 1996
Holotype: FHSM VP-321
Locality: Tributary of the Saline River valley, on land formerly owned by the O.C. Eulert Ranch, near the town of Fairport, Russell County, Kansas.
Horizon: Middle of the Fiarport Chalk Member, Carlile Shale (orignally states as the Jetmore or Pfeifer Member, Greenhorn Formation.)
Biostratigraphy: Collignoniceras wollgarti zone.
Age: Turonian Stage, Uppermost Gallic Subepoch, Lower Gulf Epoch, Late Cretaceous.
Material: Skull in dorsal view, mandibles, and anterior cervical vertebrae.
Paratype:
USNM 50136.
= aff. Brachauchenius lucasi SCHUMACHER, 2008
Locality: Unknown, Kansas? Western interior.
Biostratigraphy: Upper Greenhorn Formation or lowermost Fairport Chalk Member, Carlile Shale.
Biostratigraphy:
Age: Turonian Stage, Uppermost Gallic Subepoch, Lower Gulf Epoch, Late Cretaceous.
Material: Muzzle and palate of a partial skull, less the premaxillae, and includign nearly complete vomers, both maxillae, and portions of the pterygoids, palatines, jugals and right prefrontal.