American Agricultural Chemical Company Mine: Tortonian, Florida
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Cetacea
- Iniidae
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Goniodelphis hudsoni n. gen., n. sp.
Allen 1941
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Allen 1941 | |||||||||
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Mammalia
- Cetacea
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Hoplocetus sp.
Gervais 1852
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Kellogg 1944 | |||||||||
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= Scaldicetus sp.
Du Bus 1867
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Morgan 1994 | |||||||||
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Balaenoptera floridana n. sp.
Kellogg 1944
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Kellogg 1944 | |||||||||
| invalid subgroup of Mysticeti | ||||||||||
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Mammalia
- Cetacea
- Cetotheriidae
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? Isocetus indet.
Van Beneden 1880
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Kellogg 1944 | |||||||||
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= Piscobalaena sp.
Pilleri and Siber 1989
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Bouetel and Muizon 2006 | |||||||||
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? Mesocetus indet.
Van Beneden 1880
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Kellogg 1944 | |||||||||
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= Piscobalaena sp.
Pilleri and Siber 1989
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Bouetel and Muizon 2006 | |||||||||
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Reptilia
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Megalodelphis magnidens n. gen., n. sp.
Kellogg 1944
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Kellogg 1944 | |||||||||
| synonym of Thecachampsa sericodon | ||||||||||
| MCZ 17883 - holotype (partial mandibular ramus with four teeth); referred specimen: MCZ 17880 (rostral fragment) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Florida | County: | Polk |
| Coordinates: | 27.8° North, 82.0° West (view map) | ||||
| Paleocoordinates: | 28.0° North, 80.1° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | local area |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Tortonian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Tortonian | ||
| Age range of interval: | 11.63000 - 7.24600 m.y. ago |
Stratigraphy
| Geological group: | Hawthorn | Formation: | Peace River | Member: | Bone Valley |
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Bradley Fauna; said to be Hemphillian, but Tertiary Mammals II says this is Barstovian, Ba2; lower 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: | pebbly,phosphatic lithified argillaceous,sandy sandstone |
| Includes fossils? | Y |
| Lithology description: Clastic rock unit consisting primarily of pebble- to sand-sized phosphates in a matrix of clay and quartz sand. | |
| Environment: | lagoonal |
| Geology comments: Bone Valley Formation environment consists of shallow lagoons and bays along the coast. ,nearshore marine, low-energy bays of clay-rich beds and high energy channels | |
Taphonomy
| Modes of preservation: | body,original phosphate |
| Size of fossils: | macrofossils |
| Articulated whole bodies: | none |
| Associated major elements: | none |
| Disassociated major elements: | many |
| Disassociated minor elements: | some |
Collection methods and comments
| Collection methods: | salvage,field collection |
| Collection size: | 4 specimens |
| Reason for describing collection: | general faunal/floral analysis |
| Museum repositories: | MCZ |
| Taxonomic list comments:Goniodelphis hudsoni MCZ 3920, partial skull lacking the braincase and anterior portion of the rostrum (Allen 1941: pls. 1-3); Scaldicetus sp. MCZ 17886, two teeth; Balaenoptera floridana MCZ 17882, complete right mandible. | |
Metadata
| Database number: | 45469 | ||
| Authorizer: | M. Uhen | Enterer: | N. Pyenson, M. Uhen |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2004-10-25 05:41:44 | Last modified: | 2022-04-28 04:54:41 |
| Access level: | the public | Released: | 2004-10-25 05:41:44 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 2613. | 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] |
Secondary references:
| 11894 | G. M. Allen. 1941. A fossil river dolphin from Florida. Bulletin of the Museum of Comparative Zoology 89(1):1-8 [M. Uhen/M. Uhen/M. Uhen] | |
| 18255 | V. Bouetel and C. Muizon. 2006. The anatomy and relationships of Piscobalaena nanna (Cetacea, Mysticeti), a Cetotheriidae s.s. from the early Pliocene of Peru. Geodiversitas 28(2):319-395 [M. Uhen/M. Uhen] | |
| 12596 | R. Kellogg. 1944. Fossil Cetaceans from the Florida Tertiary. Bulletin of the Museum of Comparative Zoology at Harvard College XCIV(9):433-471 [M. Uhen/M. Uhen/M. Uhen] | |
| 12814 | G. Pilleri and H. J. Siber. 1989. Neuer Spattertiarer cetotherid (Cetacea, Mysticeti) aus der Pisco Formation Perus. Beitrage zur Palaontologie der Cetaceen Perus 109-115 [M. Uhen/M. Uhen/M. Uhen] |