Glen Springs: Tortonian - Zanclean, Florida

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Carcharhiniformes - Hemigaleidae
Hemipristis sp. Agassiz 1835
Teeth
Mammalia - Sirenia
Sirenia indet. (Illiger 1811)
Rib fragments
Mammalia - Sirenia - Dugongidae
Felsinotherium sp. Capellini 1872
synonym of Metaxytherium
Last molar
Reptilia
Gavialosuchus americanus (Sellards 1915)
synonym of Thecachampsa sericodon
UF 3395 (plate)
see common names

Geography
Country:United States State/province:Florida County:Alachua
Coordinates: 29.7° North, 82.4° West (view map)
Paleocoordinates:29.9° North, 80.7° West
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Neogene
10 m.y. bin:Cenozoic 6
Key time interval:Tortonian - Zanclean
Age range of interval:11.62000 - 3.60000 m.y. ago
Stratigraphy
Geological group:Hawthorn Formation:Peace River
Stratigraphic resolution:bed
Stratigraphy comments: See Bryant et al. 1992 for revised ages of Hawthorn Group formations.
Peace River Formation in Florida was likely deposited between 11-4.3Ma. The lower sequence is Tortonian, deposited between 11-8.5Ma, and the upper sequence is Zanclean and deposited between 5.2-4.3Ma (Missimer, 1999)
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:144202
Authorizer:P. Mannion Enterer:P. Mannion
Modifier:G. Varnham Research group:vertebrate
Created:2013-05-02 01:56:49 Last modified:2022-04-28 04:44:18
Access level:the public Released:2013-05-02 01:56:49
Creative Commons license:CC BY
Reference information

Primary reference:

46627. W. Auffenberg. 1957. Notes on fossil crocodilians from Southeastern United States. Quarterly Journal of The Florida Academy of Sciences 20:107-113 [P. Mannion/P. Mannion]