Locality 16c, Itaska roadcut, Glen Aubrey Fm., Sonyea Group, NY (Devonian of the United States)

Where: New York (42.3° N, 75.9° W: paleocoordinates 34.7° S, 24.3° W)

• outcrop-level geographic resolution

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

• formation-level stratigraphic resolution

Environment/lithology: prodelta; bioturbated, gray shale and siltstone

• interbedded shales and siltstones; contains numerous grooves, tracks, trails, cross-laminae and current ripples

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 10323: authorized by Arnold Miller, entered by Karen Layou on 03.04.2001, 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
Rhynchonellata
 Spiriferida - Ambocoeliidae
Ambocoelia sp. Hall 1860
 Spiriferida - Mucrospiriferidae
Tylothyris sp. North 1920
 Orthida - Schizophoriidae
Strophomenata
 Strophomenida - Chonetidae
Chonetes sp. Fischer de Waldheim 1830
 Productida - Productellidae
Bivalvia
 Cardiidia - Grammysiidae
Grammysia sp. de Verneuil 1847 clam