Eurypterid-Associated Biota of the Thacher Member, Herkimer County (Silurian of the United States)

Where: New York (43.5° N, 75.0° W: paleocoordinates 31.0° S, 37.4° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Thacher Member (Manlius Formation), Pridoli (423.0 - 419.2 Ma)

• Ebert and Matteson (2023) place the Thatcher member at the base of the Manlius, in the Pridoli.

• member-level stratigraphic resolution

Environment/lithology: shallow subtidal; limestone and bindstone

• Interpreted as BA1, but more open marine conditions based on fauna, possibly lagoonal.

•

•2003:05:03 SEP environmental call based on given description

•Ebert and Matteson (2023): " represent and array of environments that include flats and sibtidal environments that range from relatively shallow to relatively deep and dysoxic."

• "thick-bedded limestone, with stromatolites"

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 26870: authorized by Michael Foote, entered by Michael Foote on 06.11.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Stromatoporoidea
 Stromatoporoidea -
Stromatoporoidea indet.
Stromatoporoidea indet. stromatoporoid sponge
Euchelicerata
 Eurypterida - Erieopteridae
Erieopterus microphthalmus
Ostracoda
 Leperditicopida - Leperditiidae
Leperditia sp.
Leperditia sp. Rouault 1851 ostracod
Lophophorata
 Tentaculitida - Tentaculitidae
Tentaculites sp.
Tentaculites sp. von Schlotheim 1820
Strophomenata
 Strophomenida - Leptostrophiidae
Brachyprion sp.
Brachyprion sp. Shaler 1865
Rhynchonellata
 Spiriferida - Delthyrididae
Howellella sp.
Howellella sp. Kozlowski 1946