Where: Maryland (38.9° N, 76.9° W: paleocoordinates 39.7° N, 52.7° W)

• basin-level geographic resolution

When: Maastrichtian (70.6 - 65.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology:

Primary reference: D. Jablonski and D. M. Raup. 1999. [J. Alroy/J. Alroy] more details

PaleoDB collection 1312: authorized by Dave Jablonski, entered by Dave Jablonski on 06.01.1993