Thunder Bay Region - Thunder Bay brach list (Devonian of the United States)

Where: Michigan (45.2° N, 83.7° W: paleocoordinates 33.2° S, 29.4° W)

• coordinate estimated from map

• local area-level geographic resolution

When: upper varcus conodont zone, Thunder Bay Formation (Traverse Group), Givetian (387.7 - 382.7 Ma)

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

Primary reference: E. C. Stumm. 1951. Check List of Fossil Invertebrates Described from the Middle Devonian Traverse Group of Michigan. Contributions from the Museum of Paleontology, University of Michigan 9(1):1-44 [A. Miller/J. Zambito/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 96295: authorized by Arnold Miller, entered by Jay Zambito on 31.05.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

 Productida - Chonetidae
Chonetes sp. Fischer de Waldheim 1830
 Athyridida - Meristellidae
 Athyridida - Athyrididae
 Terebratulida - Cranaenidae
 Spiriferinida - Cyrtinidae
Cyrtina sp. Davidson 1858
 Spiriferida - Mucrospiriferidae
Mucrospirifer sp. Grabau 1931
 Pentamerida - Clorindidae
 Atrypida - Atrypidae
Atrypa sp. Dalman 1828
 Rhynchonellida - Camarotoechiidae
Camarotoechia sp. Hall and Clarke 1893