Also known as Claosaurus annectens type, Lance Creek

Where: Niobrara County, Wyoming (43.3° N, 104.5° W: paleocoordinates 49.8° N, 79.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Lance Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by J. B. Hatcher & A. L. Sullins in 1891, 1900; reposited in the CM, USNM

Collection methods: quarrying, surface (in situ), mechanical,

Primary reference: O. C. Marsh. 1892. Notice of new reptiles from the Laramie Formation. American Journal of Science 43:449-453 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49238: authorized by Matthew Carrano, entered by Matthew Carrano on 11.04.2005

Creative Commons license: CC BY (attribution)