Locality 36, Afton Lake, Triangle Fm., Sonyea Grp., NY (Devonian of the United States)

Where: Chenango County, New York (42.2° N, 75.5° W)

• Paleocoordinates: 33.0° S, 42.6° W (Wright 2013)

• coordinate based on political unit

• 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 10221: authorized by Arnold Miller, entered by Karen Layou on 06.03.2001, edited by Alycia Stigall

Creative Commons license: CC0 (CC0)

Taxonomic list

• Relative abundance categories: (1) 1-10 specimens; (2) 11-100 specimens; (3) 101-1000 specimens; and (4)more than 1000
Show authors, comments, and common names
Bivalvia
 Nuculida - Nuculidae
Nuculoidea sp.
Nuculoidea sp. Williams and Berger 1916 nut clam
 Nuculanida - Malletiidae
Palaeoneilo sp.
Palaeoneilo sp. Hall and Whitfield 1869 clam
[entered as Paleoneilo sp.]
 Cardiidia - Grammysiidae
Sphenotus sp.
Sphenotus sp. Hall 1884 clam
 Cardiida -
Cypricardella laroquei
Rhynchonellata
 Rhynchonellida - Leiorhynchidae
Leiorhynchus sp.
Leiorhynchus sp. Hall 1860
Strophomenata
 Productida - Sentosiidae
Praewaagenoconcha speciosa
 Strophomenida - Strophodontidae
"Stropheodonta sp." = Strophomena (Strophodonta)
"Stropheodonta sp." = Strophomena (Strophodonta) Hall 1852
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
crinoid columnals