Where: New Castle County, Delaware (39.6° N, 75.6° W: paleocoordinates 40.1° N, 51.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Mount Laurel Formation (Monmouth Group), Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• probably Mount Laurel Sand (or Matawan Formation?)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collection methods: Repository: Johns Hopkins University

Primary reference: C. W. Cooke. 1953. American Upper Cretaceous Echinoidea. United States Geological Survey Professional Paper 254-A:1-44 [W. Kiessling/U. Merkel/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 78190: authorized by Wolfgang Kiessling, entered by Uta Merkel on 30.01.2008

Creative Commons license: CC BY (attribution)