Also known as T. serratus type, Lance Creek, Hatcher Sk. 4

Where: Niobrara County, Wyoming (43.1° N, 104.6° W: paleocoordinates 49.6° N, 79.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• base of sandstone layer about 20 feet above bottom of draw, probably slightly higher than T. horridus type level

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithified, concretionary, calcareous sandstone

Size class: macrofossils

Preservation: concretion

Collected by C. E. Beecher in 1889; reposited in the YPM

Collection methods: quarrying, mechanical,

Primary reference: J. B. Hatcher, O. C. Marsh, and R. S. Lull. 1907. The Ceratopsia. Monographs of the United States Geological Survey 49:1-198 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 46126: authorized by Matthew Carrano, entered by Matthew Carrano on 04.01.2005

Creative Commons license: CC BY (attribution)