Decker Formation Brachiopods, Green Pond Outlier, SE New York and NE New Jersey (Silurian of the United States)

Where: New York (44.3° N, 74.2° W: paleocoordinates 30.4° S, 36.5° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Decker Formation, Pridoli (423.0 - 419.2 Ma)

• formation-level stratigraphic resolution

Environment/lithology: hematitic, argillaceous dolomite and hematitic grainstone

• 2003:05:03 SEP environmental call based on given lith. description and personal information
• Decker consists of three units (going up): shaly, dark-gray, fine-grained dolomite; medium-grained dolomite with bands of hematite; a 2-foote bed of coarsely crystalline limestone with hematite and some quartz sand grains, bryozoan and crinoid fragments.

Primary reference: A. J. Boucot, K. L. Gauri, and J. Southard. 1970. Silurian and Lower Devonian brachiopods, structure and stratigraphy of the Green Pond Outlier in southeastern New York. Palaeontographica Abteilung A 135(1-2):1-59 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 25893: authorized by Michael Foote, entered by Michael Foote on 27.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Brachiopods only.
Strophomenata
 Strophomenida - Chonetidae
Chonetidae indet. Bronn 1862
chonetid sp. D
 Strophomenida - Leptostrophiidae
? Leptostrophia sp. Hall and Clarke 1892
 Strophomenida - Rafinesquinidae
Leptaena "sp. B" Dalman 1828
Rhynchonellata
 Pentamerida - Gypidulidae
Gypidula sp. Hall 1867
 Spiriferida - Cyrtinopsidae
"Kozlowskiella (Megakozlowskiella) cf. perlamellosa" = Megakozlowskiella perlamellosa
"Kozlowskiella (Megakozlowskiella) cf. perlamellosa" = Megakozlowskiella perlamellosa Hall 1857
 Athyridida - Nucleospiridae
 Atrypida - Atrypidae
Atrypa sp. Dalman 1828
 Rhynchonellida - Trigonirhynchiidae
? Cupularostrum "sp. B" Sartenaer 1961
 Rhynchonellida - Machaerariidae
Machaeraria "sp. A" Cooper 1955
Machaeraria "sp. B" Cooper 1955
 Orthida - Rhipidomellidae
 Orthida - Orthidae
? Orthostrophia sp.
Orthostrophia or Dolerorthis
 Orthida - Hesperorthidae
? Dolerorthis sp. Schuchert and Cooper 1931
Orthostrophia or Dolerorthis