Moss Acres Racetrack: Hemphillian, Florida

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Anseriformes - Anatidae
Anatidae indet. Vigors 1825
Lambert 1997
Reptilia
Alligator sp. Daudin 1809
Lambert 1997
    = Alligator cf. mefferdi Mook 1946
Snyder 2007
    = Alligator mississippiensis Daudin 1801
Whiting et al. 2016
UF 115627, 95427, 69930 and 206644
    = Alligator cf. mefferdi Mook 1946
Stout 2020
Reptilia - Testudines - Emydidae
Trachemys sp. Agassiz 1857
Lambert 1997
Pseudemys sp. Gray 1856
Lambert 1997
Reptilia - Testudines - Trionychidae
Apalone sp. Rafinesque 1832
Lambert 1997
Mammalia - Megalonychidae
Pliometanastes protistus Hirschfeld and Webb 1968
Mammalia - Proboscidea - Gomphotheriidae
Amebelodon fricki Barbour 1927
    = Amebelodon (Konobelodon) britti n. sp. Lambert 1990
Lambert 1990
recombined as Konobelodon britti
Mammalia - Carnivora - Mustelidae
Enhydritherium sp. Berta and Morgan 1985
(1 measurement)
    = Enhydritherium terraenovae Berta and Morgan 1985
Morgan 1994
Mammalia - Carnivora - Canidae
Osteoborus orc Webb 1969
    = Borophagus orc Webb 1969
Lambert 1997
"Canidae indet."
Mammalia - Perissodactyla - Equidae
Cormohipparion plicatile (Leidy 1887)
    = Hippotherium plicatile Leidy 1887
Alroy 2002
recombined as Cormohipparion plicatile
Cormohipparion emsliei Hulbert 1988
    = Hippotherium emsliei Hulbert 1988
Hulbert 1988
original and current combination Cormohipparion emsliei
"C. ingenuum"
Neohipparion eurystyle (Cope 1893)
    = Neohipparion trampasense Edwards 1982
Lambert 1997
Hipparion cf. tehonense (Merriam 1916)
recombined as Hipparion gratum tehonense
Nannippus minor (Sellards 1916)
    = Nannippus aztecus Mooser 1968
Alroy 2002
Nannippus morgani Hulbert 1993
Hulbert 1993
N. sp. "3" of Hulbert 1988c
cf. Astrohippus sp. (Stirton 1940)
Lambert 1997
original and current combination Pliohippus (Astrohippus)
Calippus maccartyi (Hulbert 1988)
Dinohippus sp. Quinn 1955
Mammalia - Perissodactyla - Rhinocerotidae
Aphelops mutilus Matthew 1924
Mammalia - Tayassuidae
Tayassuidae indet. Palmer 1897
Mammalia - Camelidae
Hemiauchenia minima (Leidy 1886)
Aepycamelus sp. Macdonald 1956
Mammalia
Gelocidae indet. Schlosser 1886
    = Ruminantia indet. Scopoli 1777
Alroy 2002
Mammalia - Antilocapridae
Antilocapridae indet. Gray 1866
Lambert 1997
Mammalia - Palaeomerycidae
Pediomeryx sp. Stirton 1936
    = Pediomeryx hemphillensis Stirton 1936
Lambert 1997
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843
Lambert 1997
see common names

Geography
Country:United States State/province:Florida County:Marion
Coordinates: 29.1° North, 82.3° West (view map)
Paleocoordinates:29.3° North, 80.6° West
Basis of coordinate:based on political unit
Geographic resolution:outcrop
Time
Period:Neogene
10 m.y. bin:Cenozoic 6
*Period:Late/Upper Tertiary *Epoch:Late/Upper Miocene
*Local age/stage:Early/Lower Hemphillian
Key time interval:Hemphillian
Age range of interval:9.40000 - 4.70000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Alachua
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: claystone
Lithology description: "fine-grained, virtually pure clay... 80% illite and 20% kaolinite, and contains numerous fine silica grains and isolated pockets of peat"
Environment:pond
Geology comments: "fluvially isolated, permanent pond"
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Articulated whole bodies:some
Collection methods and comments
Collection methods:field collection
Reason for describing collection:paleoecologic analysis
Taxonomic list comments:"cf. Procamelus sp." is omitted by Lambert 1997
Metadata
Database number:18564
Authorizer:J. Alroy, P. Mannion Enterer:J. Alroy, P. Mannion
Modifier:J. Alroy Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2002-09-26 19:10:08
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
1949. R. C. Hulbert, Jr. 1988. Calippus and Protohippus (Mammalia, Perissodactyla, Equidae) from the Miocene (Barstovian-early Hemphillian) of the Gulf Coastal Plain. Bulletin of the Florida State Museum, Biological Sciences 32(3):221-340 [J. Alroy/J. Alroy/R. Hulbert]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
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]
1953 R. C. Hulbert, Jr. 1993. Late Miocene Nannippus (Mammalia: Perissodactyla) from Florida, with a description of the smallest Hipparionine horse. Journal of Vertebrate Paleontology 13(3):350-366 [J. Alroy/J. Alroy/J. Marcot]
2200 W. D. Lambert. 1990. Rediagnosis of the Genus Amebelodon (Mammalia, Proboscidea, Gomphotheriidae), with a New Subgenus and Species, Amebelodon (Konobelodon) britti. Journal of Paleontology 64(6):1032-1040 [J. Alroy/J. Alroy/J. Ju]
2202 W. D. Lambert. 1997. The osteology and paleoecology of the giant otter Enhydritherium terraenovae. Journal of Vertebrate Paleontology 17(4):738-749 [J. Alroy/J. Alroy/J. Alroy]
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]
35991 D. Snyder. 2007. Morphology and systematics of two Miocene alligators from Florida, with a discussion of alligator biogeography. Journal of Paleontology 81(5):917-928 [J. Alroy/J. Alroy]
74149 J. B. Stout. 2020. New early Pleistocene Alligator (Eusuchia: Crocodylia) from Florida bridges a gap in Alligator evolution. Zootaxa 4868(1):41-60 [P. Mannion/P. Mannion/P. Mannion]
59566 E. T. Whiting, D. W. Steadman, and K. A. Vliet. 2016. Cranial Polymorphism and Systematics of Miocene and Living Alligator in North America. Journal of Herpetology 50(2):306-315 [P. Mannion/P. Mannion]