Genus: Trinacromerium CRAGIN, 1888

Species: bentonianum CRAGIN, 1888

Referred material:

SCHUMACHER & EVERHART, 2005

Locality: East-central Ellis County, Kansas.

Horizon: Middle Fairport Chalk, Carlile Shale.

Biostratigraphy:

Age: Early MiddleTuronian Stage, Uppermost Gallic Subepoch, Lower Gulf Epoch, Late Cretaceous.

Material:

FHSM VP-698: Nearly complete axial skeleton minus the skull, including a series of 62 vertebrae beginining with the atas-axis and extending into the anterior caudals, also numerous cervical and trunk ribs, sacral ribs, the proximal head and distal end of a propodial (?), left ilium, girdle portions, and numerous loose podials and phalanges.
Note: Tooth marks on the ilium by Squalicorax.

 

= Dolichorhynchops sp SCHWIMMER, STEWART & WILLIAMS, 1997

Locality: Ellis County, Kansas.

Horizon: Middle Fairport Chalk Member, Carlile Shale.

Biostratigraphy:

Age: Middle Turonian Stage, Upper Gallic Subepoch, Lower Gulf Epoch, Late Cretaceous.

Material:

FHSM VP 12059: Fragmentary skeleton.
Note: Serrate bite marks on both surfaces of left coracoid, not healed from a shark.

= Trinacromerium anonymum WILLISTON, 1903
Etymology:
= Ichthyosaurus MUDGE, 1873

Holotype: KUVP 1325

Locality: Near Paradise Creek, NW 1/4, Sec. 20, T11S, R14W, Russell County, Kansas.

Horizon: Fencepost Limestone, Pfeiffer Shale Member, Greenhorn Limestone.

Biostratigraphy:

Age: Late Cretaceous.

Material: 10 associated cervical vertebrae, propodial, parts of ilium and coracoid, 15 vertebrae and 2 phalanges.
Note: Tooth marks on the ilium by Squalicorax (SCHUMACHER & EVERHART, 2005)