Orange Lake (Pleistocene of the United States)

Where: Marion County, Florida (29.4° N, 82.2° W: paleocoordinates 29.4° N, 82.2° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Arredondo Member (Wicomico Formation), Middle Pleistocene (0.8 - 0.1 Ma)

• from the 13 foot thick "Bed 2" in the local section, the only unit representing the Arredondo Member; the "Arredondo clay presumably represents the Illinoian glacial stage of the Pleistocene... I do not believe the bones... represent animals of Sangamon age, but rather they were reworked from the top of the Illinoian bed by the encroaching sea"

• bed-level stratigraphic resolution

Environment/lithology: sinkhole; blue claystone

• "a fairly large sink which was probably only intermittently filled with water since the sandy clay of the bone bed is well stratified and there are no fossil fish"
• "blue clay streaked with yellow; contains fresh water snails, scutes of Dasypus bellus, and vertebrate bones"

Size class: mesofossils

Collected by P. Brodkorb in 31, 1957

• collecting methods unclear; material is in the Florida Geological Survey collection

Primary reference: J. A. Holman. 1959. A Pleistocene herpetofauna near Orange Lake, Florida. Herpetologica 15(3):121-125 [J. Alroy/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 75974: authorized by John Alroy, entered by John Alroy on 07.11.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Aves
 Passeriformes -
Passeriformes indet. Linnaeus 1758 perching bird
Reptilia
 Crocodylia - Alligatoridae
Alligator mississippiensis Daudin 1801 American alligator
 Squamata - Anguidae
Ophisaurus ventralis Linnaeus 1766 eastern glass lizard
 Squamata - Polychrotidae
Anolis carolinensis Voight 1832 green anole
 Squamata - Crotalidae
Crotalus adamanteus Palisot de Beauvois 1799 eastern diamondback rattlesnake
 Squamata - Elapidae
Micrurus fulvius coral snake
 Squamata - Colubridae
Drymarchon corais Boie 1827 cribo
Natricinae indet. Bonaparte 1838 colubrid snake
Farancia sp. Gray 1842 colubrid snake
"Farancia or Abastor"
Colubrinae indet. Oppel 1811 colubrid snake
Elaphe sp. Wagler 1833 colubrid snake
Lampropeltis getulus Linnaeus 1766 kingsnake
 Testudines - Emydidae
Terrapene carolina Linnaeus 1758 common box turtle
 Testudines - Testudinidae
Geochelone sp. Fitzinger 1835 turtle
Mammalia
 Theriamorpha - Soricidae
Soricidae indet. Fischer 1814 shrew
 Rodentia - Cricetidae
Sigmodon hispidus Say and Ord 1825 hispid cotton rat
Neofiber alleni True 1884 round-tailed muskrat
Peromyscus sp. Gloger 1841 deer mouse
"Pitymys sp." = Microtus Schrank 1798 vole
 Lagomorpha - Leporidae
Sylvilagus floridanus Allen 1890 eastern cottontail
 Cingulata - Dasypodidae
Dasypus bellus Simpson 1929 beautiful armadillo
Amphibia
 Salientia - Pelobatidae
"Scaphiopus holbrooki" = Scaphiopus (Scaphiopus) holbrooki
"Scaphiopus holbrooki" = Scaphiopus (Scaphiopus) holbrooki Harlan 1835 Eastern spadefoot toad
 Salientia - Bufonidae
Bufo terrestris Bonnaterre 1789 Southern toad
 Salientia - Microhylidae
"Microhyla carolinensis" = Gastrophryne carolinensis
"Microhyla carolinensis" = Gastrophryne carolinensis Holbrook 1835 Eastern narrowmouth toad
 Salientia - Ranidae
Rana sp. Linnaeus 1758 frog
 Caudata - Urodela
"Ambystoma sp." = Amblystoma Tschudi 1838 mole salamander
possibly young individuals of tigrinum
Ambystoma tigrinum Green 1825 tiger salamander
one vertebra of nine from the overlying bed
Plethodon glutinosus Green 1818 northern slimy salamander