Chipola River, Marianna Fm. (Oligocene of the United States)
Also known as Marianna
Where: Jackson County, Florida (30.8° N, 85.2° W: paleocoordinates 30.9° N, 78.8° W)
• coordinate estimated from map
When: Marianna Formation, Rupelian (33.9 - 28.1 Ma)
• Cooke calls this Oligocene in general
Environment/lithology: glauconitic limestone
• alternating hard and softer beds of light-colored limestone, very hard and compact in places, locally semicrystalline. The lower portion contains a considerable amount of glauconite.
Size class: macrofossils
Primary reference: C. W. Cooke. 1915. The Age of the Ocala Limestone. US Geological Survey Professional Paper 95(I):107-117 [M. Uhen/M. Uhen]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 57924: authorized by Mark Uhen, entered by Mark Uhen on 10.01.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Echinoidea | |
|
Clypeaster rogersi Morton 1834 sand dollar | |
|
Eupatagus (Plagiobrissus) curvus n. sp. Cooke 1942 heart urchin | |
| Bivalvia | |
"Pecten poulsoni" = Pecten (Pecten) poulsoni
"Pecten poulsoni" = Pecten (Pecten) poulsoni Morton 1834 scallop | |