Delaware Water Gap Eurypterids (Silurian of the United States)

Where: Pennsylvania (41.0° N, 75.1° W: paleocoordinates 29.8° S, 43.3° W)

• coordinate based on nearby landmark

When: Shawangunk Formation, Silurian (443.8 - 419.2 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; lithified, conglomeratic sandstone and lithified, black shale

• Considered by Smith (1970) to be a proximal braided stream deposit. [GSA Bull. 81:2993-3014.]

•2003:04:06 SEP tectonic/stratigraphic information supplied on the basis of regional stratigraphic context and lithological description. Only applies if Llandoverian age is correct. Later age assignment changes context in larger sequence architecture.

• Massive, conglomeratic sandstone, with thin band of black, arenaceous shale; eurypterids in shale.

Size class: macrofossils

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 12763: authorized by Michael Foote, entered by Michael Foote on 04.12.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Pteraspidomorpha
  - Cyathaspididae
Vernonaspis sp.
Vernonaspis sp.
vertebrate
Euchelicerata
 Eurypterida - Rhenopteridae
Kiaeropterus otisius
 Eurypterida - Hardieopteridae
Hardieopterus myops, Hardieopterus ? myops
 Eurypterida - Dolichopteridae
Ruedemannipterus stylonuroides
 Eurypterida - Stylonuridae
Ctenopterus cestrotus
 Eurypterida - Carcinosomatidae
Rhinocarcinosoma cicerops
 Eurypterida - Adelophthalmidae
Parahughmilleria maria, Nanahughmilleria clarkei
 Eurypterida - Pterygotidae
Erettopterus globiceps, Erettopterus ? globiceps
 Eurypterida - Hughmilleriidae
Hughmilleria shawangunk
 Ichnofossils -
Arthrophycus sp.
Arthrophycus sp. Hall 1852
trace fossil