Locality 30a, West Bainbridge--lower, Triangle Fm., Sonyea Grp., NY (Devonian of the United States)

Where: New York (42.3° N, 75.5° W: paleocoordinates 34.7° S, 23.9° W)

• outcrop-level geographic resolution

When: Triangle Formation (Sonyea Group), Frasnian (382.7 - 372.2 Ma)

• formation-level stratigraphic resolution

Environment/lithology: delta front; mudstone and sandstone

• mudstones and sandstones; cross-bedding, wave and current ripples, groove casts, pillow structures, and parallel laminae common in coarser sediments

Primary reference: K. B. Macdonald. 1975. Quantitative community analysis: Recurrent group and cluster techniques applied to the fauna of the Upper Devonian Sonyea Group, New York. Journal of Geology 82:473-499 [A. Miller/K. Layou]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 10216: authorized by Arnold Miller, entered by Karen Layou on 06.03.2001, edited by Alycia Stigall

Creative Commons license: CC BY (attribution)

Taxonomic list

• Relative abundance categories: (1) 1-10 specimens; (2) 11-100 specimens; (3) 101-1000 specimens; and (4)more than 1000
 Spiriferida - Mucrospiriferidae
Mucrospirifer sp. Grabau 1931
 Rhynchonellida - Trigonirhynchiidae
 Rhynchonellida - Leiorhynchidae
Leiorhynchus sp. Hall 1860
 Ostreida - Pterineidae
 Cardiidia - Sanguinolitidae
"Sphenotus sp." = Sanguinolites
"Sphenotus sp." = Sanguinolites M'Coy 1844 clam
Bryozoa indet. Ehrenberg 1831
Crinoidea indet. Miller 1821 Sea lily