Where: Prince George's County, Maryland (38.9° N, 76.8° W: paleocoordinates 39.8° N, 52.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Severn Formation, Maastrichtian (70.6 - 65.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithology not reported

Size classes: macrofossils, mesofossils

Collected by T. A. Miller

Primary reference: D. Baird. 1986. Upper Cretaceous reptiles from the Severn Formation of Maryland. The Mosasaur 3:63-85 [J. Alroy/M. Sommers] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 27565: authorized by John Alroy, entered by John Alroy on 11.12.2002

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)