Species: lucasi WILLISTON, 1903
Etymology:

Holotype: USNM 4989

Locality: Fort Benton, near Ada, Ottwa County, Western Kansas.

Horizon: Upper Greenhorn Formation or Lower Fairport Chalk, Carlile Shales.

Biostratigraphy:

Age: Early Middle Turonian Stage, Uppermost Gallic Subepoch, Lower Gulf Epoch, Middle Cretaceous.

Material: Skull in palatal view with attached mandibles, the first 37 vertebrae and ribs.

Referred material:

Locality: Bouldin Creek, near Austin, Travis County, Texas.

Horizon: Lake Waco Formation (?), Eagle Ford Shales, Eagle Ford Group.

Biostratigraphy:

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

Material:

USNM 2361: Skull missing tip of snout and fragmentary skeleton.

 

ALBRIGHT, GILLETTE & TITUS, 2007

= Pliosaurus genus: Nova? ALBRIGHT, GILLETTE, TITUS & GRAFFAM, 2001

= Brachauchenius sp. cf. lucasi GILLETTE & ALBRIGHT, 2003

Locality: MNA LOC 1479, Glen Canyon National Recreation Area, Kane County, Utah.

Horizon: Approximately 21 m above local top of Dakota Formation, 2.4 m below top of Bentonite C, Tropic Shale.

Biostratigraphy: Middle to upper part of the Pseudoaspidoceras flexuosum Ammonoid Biozone.

Age: Earliest Turonian Stage, Uppermost Gallic Subepoch, Lower Gulf Epoch, Middle Cretaceous.

Material:

MNA V9433: Nearly complete skull with mandible with teeth, 12 cervical, 22 dorsal vertebrae, ribs, partial scapula, left coracoid, partial right coracoid, right lium, partial pubis and partial ischium.

 

Locality: MNA LOC 1478, Glen Canyon National Recreation area, Kane County, Utah.

Horizon: Approximately 7.1 m stratigraphically above (about 300 m east of MNA LOC 1479), 20 cm below base of Bentonite D, Tropic Shale.

Biostratigraphy:

Age: Early Turonian Stage, Uppermost Gallic Subepoch, Lower Gulf Epoch, Middle Cretaceous.

Material:

MNA V9432: Partial cranium, partial mandible, and vertebrae of a juvenile.

 

ANGST, & BARDET, 2015

Locality: Goulmima Region, Er-Rachidia Province, Morocco.

Horizon: Probably Akrabou Formation.

Biostratigraphy:

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

Material:

MNHN GOU 11: An incomplete mandible.

 

LIGGETT, SHIMADA, BENNETT & SCHUMACHER, 2005

Locality: Northwestern Russell County, Kansas.

Horizon: Immediately above the contact between the Graneros Shale and the Lincoln Limestone member, Greenhorn Limestone.

Biostratigraphy:

Age: Cenomanian Stage, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material:

FHSM VP-13997: Partial paddle.

FHSM VP-14783: 2 teeth.

 

 

SCHUMACHER, 2002, SCHUMACHER & EVERHART, 2005

Locality: Ellis County, Kansas.

Horizon: Lincoln Limestone Member, Greenhorn Limestone..

Biostratigraphy:

Age: Cenomanian Stage, Upper Gallic Subepoch, Lowermost Gulf Epoch, Middle Cretaceous.

Material:

FHSM VP-13997: Left humerus, epipodials, mesopodials, metapodials, and proximal phalanges.

Note: May belong to FHSM VP-12059.

SCHWIMMER, STEWART & WILLAMS, 1997

Locality: Russell County, Kansas.

Horizon: Carlile Shale.

Biostratigraphy:

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

Material:

FHSM (unnumbered): Partial skeleton.
Note: One rib with serrate tooth marks, another with embedded Squalicorax tooth, no evidence of healing.