Cyrtina Community of the Coeymans Limestone, Cherry Valley area, New York (Devonian of the United States)

Where: New York (42.8° N, 74.8° W: paleocoordinates 34.9° S, 33.8° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Ravena Member (Coeymans Formation), Lochkovian (419.2 - 410.8 Ma)

• Gedinnian

• member-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; sandy, calcareous mudstone and sandy, calcareous siltstone

• "Geographic and stratigraphic relations with associated communities indicate a BA 3 assignment....normal current and oxygen level within photic zone."

•2003:05:03 SEP environmental call based on given description; again, tihs is a truly mixed interval in the Coeymans. could go into either carbonate or clastic classification scheme

• General description of community: "Commonly occurs as largely disarticulated shells, except for those taxa which disarticulate with difficulty, in a sandy mudstone-siltstone matrix, which may or may not be very calcareous and may not be a limestone. The bed thicknesses are in the few centimeters range. Crossbeds, prominent ripple marks, thin layering and laminations are absent."

Reposited in the USNM

• Abundances stated in text.

Primary reference: A. J. Boucot. 1999. Some Wenlockian-Geddinian, chiefly brachiopod dominated communities of North America. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 549-591 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 24813: authorized by Michael Foote, entered by Michael Foote on 20.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

 Orthotetida - Chilidiopsidae
 Orthotetida - Areostrophiidae
Aesopomum sp. Havlicek 1965
 Strophomenida - Leptostrophiidae
Leptostrophia sp. Hall and Clarke 1892
 Strophomenida - Amphistrophiidae
Mesodouvillina sp. Williams 1950
 Athyridida - Rhynchospirinidae
Rhynchospirina sp. Schuchert and LeVene 1929
 Athyridida - Meristellidae
Meristina sp. Hall 1867
 Athyridida - Nucleospiridae
Nucleospira sp. Hall 1859
 Terebratulida - Centronellidae
 Spiriferinida - Cyrtinidae
Cyrtina sp. Davidson 1858
 Spiriferida - Ambocoeliidae
 Spiriferida - Delthyrididae
Howellella sp. Kozlowski 1946
 Atrypida - Atrypidae
Atrypa sp. Dalman 1828
 Rhynchonellida - Trigonirhynchiidae
Ancillotoechia sp. Havlicek 1959
 Orthida - Draboviidae
Salopina sp. Boucot 1960
 Orthida - Schizophoriidae
Schizophoria sp. King 1850
 Orthida - Rhipidomellidae
Dalejina sp. Havlicek 1953
 Craniopsida - Craniopsidae
Craniops sp. Hall 1859
Gastropoda indet. Cuvier 1797 snail