Chinook (Carboniferous to of the United States)

Where: Indiana (39.0° N, 87.0° W: paleocoordinates 7.4° S, 23.7° W)

When: Coal III Member (Stauton Coals Formation), Desmoinesian to Desmoinesian (312.8 - 307.0 Ma)

• Tied into Coal stratigraphy across US. See Fig. 1 (p. 4)

Environment/lithology: delta plain; coal and gray, sandy shale

• described as "small-scale delta plains".
• two seams were exposed in the northern pits, from which plant fossils were collected.

•These seams, probably Coal III and IIIA were separated by 15-30 feet of gray, sandy shale and shaley sandstone.

Size class: macrofossils

Primary reference: W. A. DiMichele and G. Dolph. 1981. Compression floras of the Upper Mansfield/Lower Brazil and Upper Staunton Formation in Parke and Clay Counties, Indiana. Guidebook to Pennsylvanian Plant Localities, AIBS Field Trip No. 2. Indiana University Press, Bloomington, IN USA [H. Sims/S. Ostrowski]more details

PaleoDB collection 11192: authorized by Hallie Sims, entered by Summer Ostrowski on 23.07.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Polypodiopsida
 Equisetales - Equisetidae
Calamites sp.
Calamites sp. Suckow 1784
Pteropsida
 Filicinae -
Pecopteris sp., "Alethopteris sp." = Pecopteris (Alethopteris)
Pecopteris sp. Brongniart 1822
"Alethopteris sp." = Pecopteris (Alethopteris) Sternberg 1825
Equisetopsida
 Sphenophyllales -
Sphenophyllum sp.
Sphenophyllum sp. König 1825
 Radiatopses - Medullosaceae
Mariopteris sp., Neuropteris sp.
Mariopteris sp. Zeiller 1879
Neuropteris sp. Brongniart 1828
 Lepidodendrales - Lepidodendraceae
Lepidodendron sp.
Lepidodendron sp. Sternberg 1820