Lance Creek, 1.5 miles south of Lightning Creek (Cretaceous of the United States)

Also known as Triceratops brevicornus type

Where: Niobrara County, Wyoming (43.2° N, 104.6° W: paleocoordinates 49.8° N, 79.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• "Laramie" = Lance Fm.; near top of formation

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithified, concretionary sandstone

• 'embedded in a hard sandstone concretion"

Size class: macrofossils

Preservation: concretion

Collected by J. B. Hatcher, T. A. Bostwick, W. H. Utterback, & A. L. Sullins in 1891; reposited in the YPM

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

• Collected by J. B. Hatcher, Thomas A. Bostwick, W. H. Utterback, & A. L. Sullins, 1891

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 46132: authorized by Matthew Carrano, entered by Matthew Carrano on 04.01.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Neornithischia - Ceratopsidae
"Triceratops brevicornus n. sp." = Triceratops horridus
"Triceratops brevicornus n. sp." = Triceratops horridus Marsh 1889 ceratopsid
YPM 1834 (= Sk. 22) [now = BSP 1964 I 458]