Where: Clay County, Kentucky (37.1° N, 83.7° W: paleocoordinates 10.6° S, 22.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Breathitt Formation, Pennsylvanian (323.2 - 298.9 Ma)
• The Breathitt Formation, which contains the coal zone studied, reaches a maximum thickness of about 950 meters, and is composed of clay-shale, siltstone, subgreywacke, and several relatively thin calcium carbonate beds.
• group of beds-level stratigraphic resolution
Environment/lithology: deltaic; graded siltstone and shale
Size classes: macrofossils, microfossils
Preservation: original carbon
Collection methods: surface (in situ), chemical, mechanical,
Primary reference: P. A. Spurgeon and J. R. Jennings. 1985. Pennsylvanian plants of eastern Kentucky: A flora from the Breathitt Formation near Grannies Branch and Rocky Branch of Goose Creek, Clay County, Kentucky. Kentucky Geological Survey Rept. Inv. 3, Series 11 [H. Sims/S. Ostrowski]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 33316: authorized by Hallie Sims, entered by Alistair McGowan on 25.07.2003, edited by Jason Cassara
Creative Commons license: CC BY (attribution)
Taxonomic list
Pteropsida | |
Pecopteris cf. plumosa, "Alethopteris cf. lonchitica" = Pecopteris (Alethopteris)
"Alethopteris cf. lonchitica" = Pecopteris (Alethopteris) | |
Polypodiopsida | |
Ginkgoopsida | |
unclassified | |
| |
Mariopteris nervosa Brongniart 1879 | |
Equisetopsida | |
Bowmanites sp. Binney 1871 | |
Lepidostrobus ? ornatus Brongniart 1828 | |
Sphenopteridae | |