Gunn Farm Mine: Early/Lower Barstovian, Florida
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Teiidae
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? Cnemidophorus sp.
Wagler 1830
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Reptilia
- Scincidae
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Scincidae indet.
Gray 1825
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Reptilia
- Iguanidae
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? Leiocephalus sp.
Gray 1827
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Reptilia
- Colubridae
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Colubrinae indet.
Oppel 1811
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| two forms | ||||||||||
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Natricinae indet.
Bonaparte 1838
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Reptilia
- Testudines
- Podocnemididae
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Podocnemididae indet.
Cope 1868
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Bourque 2016 | |||||||||
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Reptilia
- Testudines
- Trionychidae
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? Apalone sp.
Rafinesque 1832
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Bourque 2013 | |||||||||
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Reptilia
- Testudines
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Kinosternidae indet.
(Hay 1892)
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Bourque 2013 | |||||||||
| spelled with current rank as Kinosternoidea | ||||||||||
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Reptilia
- Testudines
- Emydidae
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Emydidae indet.
Rafinesque 1815
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Bourque 2013 | |||||||||
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Reptilia
- Testudines
- Testudinidae
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Testudinidae indet.
Batsch 1788
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Bourque 2013 | |||||||||
| 2 species, one large, one small | ||||||||||
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Mammalia
- Rodentia
- Cricetidae
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Copemys sp.
Wood 1936
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Mammalia
- Rodentia
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Proheteromys sp.
Wood 1932
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= Geomyoidea indet.
Bonaparte 1845
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Alroy 2002 | |||||||||
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Mammalia
- Rodentia
- Heteromyidae
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Perognathus cf. minutus
James 1963
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Mammalia
- Rodentia
- Mylagaulidae
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Mylagaulus sp.
Cope 1878
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= Mylagaulidae indet.
Cope 1881
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Alroy 2002 | |||||||||
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Mammalia
- Perissodactyla
- Rhinocerotidae
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? Aphelops sp.
Owen 1845
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Mammalia
- Perissodactyla
- Equidae
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"Merychippus" primus
(Osborn 1918)
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"Merychippus" gunteri
Simpson 1930
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Mammalia
- Erinaceidae
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Lanthanotherium sp.
(Filhol 1888)
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| original and current combination Lantanotherium | ||||||||||
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Mammalia
- Sirenia
- Dugongidae
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"Hesperosiren" crataegensis
Simpson 1932
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| recombined as Metaxytherium crataegense | ||||||||||
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Amphibia
- Temnospondyli
- Batrachosauroididae
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Batrachosauroides dissimulans
Taylor and Hesse 1943
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Actinopteri
- Acanthopteri
- Sphyraenidae
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Sphyraena sp.
Artedi 1793
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Ballen 2020 | |||||||||
| UF 111768 (11 teeth) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Florida | County: | Gadsen |
| Coordinates: | 30.5° North, 84.5° West (view map) | ||||
| Paleocoordinates: | 30.8° North, 81.4° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5 | ||
| *Period: | Late/Upper Tertiary | *Epoch: | Middle Miocene | *Local age/stage: | Early/Lower Barstovian |
| Key time interval: | Early/Lower Barstovian | ||
| Age range of interval: | 16.30000 - 12.50000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
Lithology and environment
| Primary lithology: | lithified calcareous sandstone |
| Lithology description: "well indurated, carbonate-cemented sandstone" | |
| Environment: | marginal marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Disassociated minor elements: | many |
Collection methods and comments
| Collection methods: | bulk,sieve,field collection |
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:overlying horizon dated at 14.7 and 14.9 +/- 1.0 Ma (Sr isotope ratio); samples are not considered to be diagenetically altered: Bryant et al. 1992 | |
Metadata
| Also known as: | Milwhite Gunn Farm Mine; Willacoochee Creek (in part) | ||
| Database number: | 18538 | ||
| Authorizer: | J. Alroy, G. Ballen, P. Holroyd | Enterer: | J. Alroy, G. Ballen, P. Holroyd |
| Modifier: | M. Uhen | Research group: | vertebrate |
| Created: | 1994-04-30 00:00:00 | Last modified: | 2007-06-22 14:47:50 |
| Access level: | the public | Released: | 1994-04-30 00:00:00 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 1145. | 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] |
Secondary references:
| 6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
| 75828 | G. A. Ballen. 2020. New records of the genus Sphyraena (Teleostei: Sphyraenidae) from the Caribbean with comments on dental characters in the genus. Journal of Vertebrate Paleontology 40:e1849246 [G. Ballen/G. Ballen] | |
| 58392 | J. R. Bourque. 2013. Fossil Kinosternidae from the Oligocene and Miocene of Florida, USA. In D. B. Brinkman, P. A. Holroyd, and J. Gardner (eds.), Morphology and Evolution of Turtles, Vertebrate Paleobiology and Paleoanthropology 459-475 [P. Holroyd/P. Holroyd] | |
| 59687 | J. R. Bourque. 2016. Side-Necked Turtles (Testudines, Pleurodira) from the Ancient Gulf Coastal Plain of Florida During Middle Cenozoic Megathermals. Chelonian Conservation and Biology 15(1):23-35 [P. Holroyd/P. Holroyd] |