Where: Baltimore County, Maryland (39.2° N, 76.7° W: paleocoordinates 33.0° N, 31.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Arundel Clay Formation (Potomac Group), Late/Upper Aptian (122.5 - 113.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by R. Eberle in 1989; reposited in the USNM

Collection methods: surface (in situ),

Primary reference: D. B. Weishampel and L. Young. 1996. Dinosaurs of the East Coast xiii-275 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 52678: authorized by Matthew Carrano, entered by Matthew Carrano on 16.08.2005

Creative Commons license: CC BY (attribution)