Eurypterids of the Keefer Sst. Mbr, Mifflintown Fmn., Hancock, Maryland (Silurian of the United States)

Where: Maryland (39.7° N, 78.2° W: paleocoordinates 30.3° S, 45.9° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Keefer Member (Mifflintown Formation), Wenlock (433.4 - 427.4 Ma)

• "Black shale interbedded in the Keefer Sst."

• member-level stratigraphic resolution

Environment/lithology: marginal marine; black shale

• Environment given as ?marine.

•SEP environmental call based on scanty given info. and knowledge of regional geology

• "Black shale interbedded in the Keefer Sandstone Member of the Mifflintown Formation."

Primary reference: R. E. Plotnick. 1999. Habitat of Llandoverian-Lochkovian eurypterids. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities - a case study from the Silurian and Lower Devonian 106-136 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 14193: authorized by Michael Foote, entered by Michael Foote on 23.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Associated biota: none reported."
Show authors, comments, and common names
Euchelicerata
 Eurypterida - Pterygotidae
Pterygotus marylandicus, ? Erettopterus sp.
? Erettopterus sp. eurypterid
Genus name corrected from "Erretoperus" as given.