Manatee County Dam: Hemphillian, Florida
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Suliformes
- Phalacrocoracidae
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Phalacrocorax cf. wvetmorei
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Webb and Tessman 1967 | |||||||||
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Reptilia
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Alligator sp.
Daudin 1809
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Webb and Tessman 1967 | |||||||||
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Reptilia
- Crocodylidae
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cf. Charactosuchus sp.
Langston 1965
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Webb and Tessman 1967 | |||||||||
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= Crocodylidae indet.
Cuvier 1807
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Langston and Gasparini 1997 | |||||||||
| Tooth | ||||||||||
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Reptilia
- Testudines
- Emydidae
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Chrysemys inflata
Weaver and Robertson 1967
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Webb and Tessman 1967 | |||||||||
| recombined as Trachemys inflata | ||||||||||
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Reptilia
- Testudines
- Testudinidae
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Geochelone cf. turgida
(Cope 1892)
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Webb and Tessman 1967 | |||||||||
| recombined as Hesperotestudo turgida | ||||||||||
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Reptilia
- Testudines
- Trionychidae
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Trionychidae indet.
Gray 1825
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Webb and Tessman 1967 | |||||||||
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Reptilia
- Testudines
- Cheloniidae
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Cheloniidae indet.
Bonaparte 1832
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Webb and Tessman 1967 | |||||||||
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Mammalia
- Proboscidea
- Gomphotheriidae
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Rhynchotherium cf. euhyphodon
(Cope 1884)
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1 specimen | |||||||||
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= Gomphotheriidae indet.
Hay 1922
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Lambert and Shoshani 1998 | |||||||||
| "R. sp." of Tobien 1973 | ||||||||||
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Mammalia
- Carnivora
- Canidae
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Canidae indet.
Fischer de Waldheim 1817
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Mammalia
- Perissodactyla
- Equidae
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Cormohipparion ingenuum
(Leidy 1885)
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12 specimens | |||||||||
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= Hippotherium cf. ingenuum
Leidy 1885
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Hulbert 1988 | |||||||||
| recombined as Cormohipparion ingenuum | ||||||||||
| "Hipparion ingenuum" | ||||||||||
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Hipparion ingenuum
(Leidy 1885)
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Webb and Tessman 1967 | |||||||||
| recombined as Cormohipparion ingenuum | ||||||||||
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Neohipparion cf. phosphorum
(Simpson 1930)
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3 specimens | |||||||||
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= Neohipparion eurystyle
Cope 1893
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Hulbert 1988 | |||||||||
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Griphippus sp.
Quinn 1955
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1 specimen | |||||||||
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= Pseudhipparion cf. skinneri
Webb and Hulbert 1986
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Webb and Hulbert 1986 | |||||||||
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Nannippus minor
(Sellards 1916)
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3 specimens | |||||||||
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= Nannippus aztecus
Mooser 1968
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Alroy 2002 | |||||||||
| confirmed by Hulbert 1988c; (4 - 1 referred to C. elachistus) | ||||||||||
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Calippus elachistus
(Hulbert 1988)
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Hulbert 1988 | 2 specimens | ||||||||
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Mammalia
- Perissodactyla
- Rhinocerotidae
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Teleoceras sp.
Hatcher 1894
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2 specimens | |||||||||
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Mammalia
- Perissodactyla
- Tapiridae
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Tapiravus cf. polkensis
Olsen 1960
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Webb and Tessman 1967 | 1 specimen | ||||||||
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= Tapirus sp.
Brisson 1762
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Hulbert 2005 | |||||||||
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Mammalia
- Camelidae
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Tanupolama sp.
Stock 1928
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1 specimen | |||||||||
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= cf. Hemiauchenia sp.
Gervais and Ameghino 1880
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Alroy 2002 | |||||||||
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Actinopteri
- Sciaenidae
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Sciaenidae indet.
(Cuvier 1828)
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Webb and Tessman 1967 | |||||||||
| original and current combination Sciaenoidei | ||||||||||
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Actinopteri
- Tetraodontiformes
- Diodontidae
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Diodon sp.
Linnaeus 1758
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Webb and Tessman 1967 | |||||||||
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Chondrichthyes
- Myliobatiformes
- Aetobatidae
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Aetobatus sp.
Blainville 1816
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Webb and Tessman 1967 | |||||||||
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Chondrichthyes
- Myliobatiformes
- Myliobatidae
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Myliobatus sp.
(Cuvier 1816)
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Webb and Tessman 1967 | |||||||||
| original and current combination Myliobatis | ||||||||||
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Chondrichthyes
- Rhinopristiformes
- Pristidae
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Pristis sp.
Linck 1790
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Webb and Tessman 1967 | |||||||||
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Chondrichthyes
- Carcharhiniformes
- Galeocerdidae
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Galeocerdo contortis
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Webb and Tessman 1967 | |||||||||
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Galeocerdo aduncus
(Agassiz 1835)
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Webb and Tessman 1967 | |||||||||
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Chondrichthyes
- Carcharhiniformes
- Carcharhinidae
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Negaprion brevirostris
Poey 1868
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Webb and Tessman 1967 | |||||||||
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Carcharhinus leucas
(Valenciennes 1839)
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Webb and Tessman 1967 | |||||||||
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Rhizoprionodon cf. terraenovae
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Webb and Tessman 1967 | |||||||||
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Chondrichthyes
- Carcharhiniformes
- Hemigaleidae
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Hemipristis serra
Agassiz 1835
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Webb and Tessman 1967 | |||||||||
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Chondrichthyes
- Lamniformes
- Odontaspididae
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Odontaspis cuspidata
(Agassiz 1843)
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Webb and Tessman 1967 | |||||||||
| recombined as Araloselachus cuspidatus | ||||||||||
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Chondrichthyes
- Lamniformes
- Otodontidae
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Carcharodon megalodon
(Agassiz 1835)
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Webb and Tessman 1967 | |||||||||
| recombined as Otodus megalodon | ||||||||||
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Odontaspis macrota
(Agassiz 1838)
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Webb and Tessman 1967 | |||||||||
| original and current combination Otodus macrotus | ||||||||||
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Chondrichthyes
- Lamniformes
- Lamnidae
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Isurus hastalis
(Agassiz 1838)
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Webb and Tessman 1967 | |||||||||
| recombined as Carcharodon hastalis | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Florida | County: | Manatee |
| Coordinates: | 27.5° North, 82.5° West (view map) | ||||
| Paleocoordinates: | 27.7° North, 80.8° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | small collection |
Time
| Period: | Neogene | ||
| 10 m.y. bin: | Cenozoic 6 | ||
| *Period: | Tertiary | *Epoch: | Miocene |
| Key time interval: | Hemphillian | ||
| Age range of interval: | 9.40000 - 4.70000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Hawthorn | Formation: | Peace River | Member: | Bone Valley |
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: JA: Hemphillian based on AEO results; upper beds
Missimer 1999: The Peace River Formation was deposited from about 11 to 4.3 Ma. It is separated from the underlying, middle Miocene Arcadia Formation by an unconformity with a hiatus of 2 to 4 m.y. The unconformity separating the shallow marine sequence (late Miocene) from the overlying deltaic sequence (early Pliocene) has a hiatal gap of 2 to 6 m.y. depending on geographic location. | |||||
Lithology and environment
| Primary lithology: | phosphatic sandy gravel |
| Lithology description: well-sorted, sandy, phosphatic gravels (0.6 to 1.2 m thick) | |
| Environment: | estuary/bay |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
| Taxonomic list comments:from a 4' zone at one locality NISP 26 | |
Metadata
| Database number: | 18556 | ||
| Authorizer: | J. Alroy, P. Mannion, J. Bloch | Enterer: | J. Alroy, P. Mannion, R. Hulbert |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 1993-09-27 00:00:00 | Last modified: | 2022-02-08 09:45:32 |
| Access level: | the public | Released: | 1993-09-27 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 3579. | S. D. Webb and N. Tessman. 1968. A Pliocene vertebrate fauna from low elevation in Manatee County, Florida. American Journal of Science 266 [J. Alroy/J. Alroy/J. Ju] |
Secondary references:
| 6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
| 50346 | R. C. Hulbert. 2005. Late Miocene Tapirus (Mammalia, Perissodactyla) from Florida, with description of a new species, Tapirus webbi. Bulletin of the Florida Museum of Natural History 45(4):465-494 [J. Bloch/R. Hulbert] | |
| 1951 | R. C. Hulbert, Jr. 1988. Cormohipparion and Hipparion (Mammalia, Perissodactyla, Equidae) from the Late Neogene of Florida. Bulletin of the Florida State Museum, Biological Sciences 33(5):229-338 [J. Alroy/J. Alroy/M. Uhen] | |
| 1957 | R. C. Hulbert, Jr. 1999. Nine million years of Tapirus (Mammalia: Perissodactyla) from Florida. Journal of Vertebrate Paleontology 19(3):53A [J. Alroy/J. Alroy/M. Uhen] | |
| 6232 | W. D. Lambert and J. Shoshani. 1998. Proboscidea. In C. M. Janis, K. M. Scott, and L. L. Jacobs (eds.), Evolution of Tertiary mammals of North America 606-621 [J. Alroy/J. Alroy/J. Alroy] | |
| 49846 | W. Langston and Z. Gasparini. 1997. Crocodilians, Gryposuchus and the South American gavials. In R. F. Kay, R. H. Madden, R. L. Cifelli, J. J. Flynn (eds.), Vertebrate Paleontology in the Neotropics - The Miocene fauna of La Venta, Colombia 113-154 [P. Mannion/P. Mannion/M. Carrano] | |
| 6227 | S. D. Webb and R. C. Hulbert, Jr. 1986. Systematics and evolution of Pseudhipparion (Mammalia, Equidae) from the late Neogene of the Gulf Coastal Plain and the Great Plains. Contributions to Geology, the University of Wyoming, Special Paper 3:237-272 [J. Alroy/J. Alroy/J. Marcot] | |
| 46620 | S. D. Webb and N. Tessman. 1967. Vertebrate Evidence of a Low Sea Level in the Middle Pliocene. Science 156:379 [P. Mannion/P. Mannion] |