TSCHPP, MAIDMENT, LAMANNA & NORELL, 2019

Locality: Red Fork of Powder River (RFPR) Quarry B, about 20 km west of the town of Kaycee, eastern side of Bighorn Mountains, Powder River Basin, Johnson County, Wyoming.

Horizon: Member? Morrison Formation.

Biostratigraphy:

Age: Comobluffian age, Tithonian Stage, Uppermost Malm Epoch, Late Jurassic.

Material:

CM 36039: Four nearly complete cervical vertebrae and fragments of a fifth.

CM36041: Possibly two articulated dorsal vertebral arches.

CM 36035: Two caudal vertebrae.

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WIERSMA-WEYAND, CANOVILLE, SIBER & SANDER, 2021

Locality: Howe Stephens Quarry, Big Horn County, Wyoming.

Horizon: Member?, Lower Morrison Formation.

Biostratigraphy: Zone?

Age: Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.

Material:

SAM 0007 "XL": Disarticualted skeleton.

Locality: Howe Scott Quarry, Big Horn County, Wyoming.

Horizon: Member?, Lower Morrison Formation.

Biostratigraphy: Zone?

Age: Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.

Material:

SMA 0011 ("Max"): Associated specimen.