Princeton Leptoceratops site (Cretaceous of the United States)

Where: Park County, Wyoming (44.9° N, 108.9° W: paleocoordinates 52.3° N, 82.8° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• described as "Lance" because it is near the top of the undivided "Lance-Meteetsee" beds in this region, just below beds with Paleocene mammal fossils. May not be true Lance Fm. but only its equivalent.

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; mudstone and sandstone

• "near the top of a series of bedded mudstones and below more prominent overhanging sandstone ledges."

Size class: macrofossils

Collected by M. Ramus in 1962

Collection methods: quarrying, mechanical,

• Discovered by Michael Ramus of Princeton, NJ in 1962

Primary reference: J. H. Ostrom. 1978. Leptoceratops gracilis from the "Lance" Formation of Wyoming. Journal of Paleontology 52(3):697-704 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 34747: authorized by Matthew Carrano, entered by Matthew Carrano on 19.09.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Neornithischia - Leptoceratopsidae
Leptoceratops gracilis Brown 1914 leptoceratopsid
PU 18133