Gateway to the Paleobiology Database
Moss Acres Racetrack (Neogene of the United States)

Where: Marion County, Florida (29.1° N, 82.3° W: paleocoordinates 29.3° N, 80.6° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Alachua Formation, Hemphillian (10.3 - 4.9 Ma)

• bed-level stratigraphic resolution

Environment/lithology: pond; claystone

• "fluvially isolated, permanent pond"
• "fine-grained, virtually pure clay... 80% illite and 20% kaolinite, and contains numerous fine silica grains and isolated pockets of peat"

Size class: macrofossils

Primary reference: R. C. Hulbert, Jr. 1988. Calippus and Protohippus (Mammalia, Perissodactyla, Equidae) from the Miocene (Barstovian-early Hemphillian) of the Gulf Coastal Plain. Bulletin of the Florida State Museum, Biological Sciences 32(3):221-340 [J. Alroy/J. Alroy/R. Hulbert] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 18564: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Philip Mannion

Creative Commons license: CC BY (attribution)