Smith Mine (Miocene of the United States)

Also known as Floridin Smith Mine; Willacoochee Creek (in part)

Where: Gadsen County, Florida (30.5° N, 84.5° W: paleocoordinates 30.8° N, 81.4° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Dogtown Member (Torreya Formation), Early/Lower Barstovian (16.3 - 12.5 Ma)

Environment/lithology: terrestrial; sandy, calcareous claystone

• "clay, with varying amounts of sand and dolomite"

Collection methods: bulk, sieve,

Primary reference: J. D. Bryant. 1991. New early Barstovian (middle Miocene) vertebrates from the upper Torreya Formation, eastern Florida panhandle. Journal of Vertebrate Paleontology 11(4):472-489 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 18589: authorized by John Alroy, entered by John Alroy on 30.04.1994

Creative Commons license: CC BY (attribution)

Taxonomic list

• diagenetically altered shells from the same section yield a date of 15.0 +/- 1.0 Ma (Sr isotope ratio): Bryant et al. 1992
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Mammalia
 Perissodactyla - Equidae
"Merychippus isonesus" = Acritohippus isonesus
"Merychippus isonesus" = Acritohippus isonesus Cope 1889 horse