LANGSTON

Locality: Douglas Creek Arch, About 61 km (38 miles) North of Loma, Colorado.

Horizon: Green River Formation.

Biostratigraphy:

Age: Bridgerian, Early Eocene Epoch, Paleogene Period, Lower Tertiary Subera, Lower Cenozoic Era.

Material:

Number: Not given: Block and counter block of a juvenile, showing skin and skeletal impressions.