3 miles southwest of Lightning Creek (Cretaceous of the United States)

Also known as Diceratops type, Lance Creek

Where: Niobrara County, Wyoming (43.2° N, 104.6° W: paleocoordinates 49.8° N, 78.8° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Laramie Formation, Maastrichtian (72.1 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithified, concretionary sandstone

• "the concretion in which the skull was embedded had entirely weathered out of the surrounding sandstone"

Size class: macrofossils

Preservation: concretion

Collected by J. B. Hatcher & W. Utterback in 1891; reposited in the USNM

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

Primary reference: J. B. Hatcher and R. S. Lull. 1905. Two new Ceratopsia from the Laramie of Converse County, Wyoming. The American Journal of Science, series 4 20(120):413-419 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 46133: authorized by Matthew Carrano, entered by Matthew Carrano on 04.01.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Neornithischia - Ceratopsidae
"Diceratops hatcheri n. gen. n. sp." = Triceratops horridus
"Diceratops hatcheri n. gen. n. sp." = Triceratops horridus Marsh 1889 ceratopsid
USNM 2412 (= Sk. 25)