Bird Branch (Miocene of the United States)

Where: Polk County, Florida (27.9° N, 81.8° W: paleocoordinates 28.2° N, 79.0° W)

• coordinate based on political unit

When: Arcadia Formation, Miocene (23.0 - 5.3 Ma)

Environment/lithology: terrestrial

Primary reference: G. S. Morgan. 1994. Miocene and Pliocene marine mammal faunas from the Bone Valley Formation of central Florida. Contributions in Marine Mammal Paleontology Honoring Frank C. Whitmore Jr., Proceedings of the San Diego Society of Natural History 29:239-268 [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 18508: authorized by John Alroy, entered by John Alroy on 26.07.1994

Creative Commons license: CC BY (attribution)

Taxonomic list

• possibly from the basal Bone Valley Fm.
Mammalia
 Perissodactyla - Equidae
Acritohippus cf. isonesus1 Cope 1889 horse
 Rodentia - Heteromyidae
Heteromyidae indet.2 Gray 1868 rodent
 Rodentia - Cricetidae
Copemys sp. Wood 1936 mouse