Rock Springs (Pleistocene) (Pleistocene of the United States)

Also known as Rock Spring

Where: Orange County, Florida (28.7° N, 81.5° W: paleocoordinates 28.7° N, 81.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Late/Upper Pleistocene (0.1 - 0.0 Ma)

• said to be Sangamonian

Environment/lithology: estuary or bay; argillaceous sandstone

• "probably... a sluggish depositing stream, possibly subjected to tidal flow" (Woolfenden 1959)
• "bone-bearing, argillaceous sands represent an old channel fill overlying the Ocala limestone, which is exposed in portions of the stream bed" (Woolfenden 1959)

Size class: macrofossils

Collected by H. J. Gut, J. Mann, J. Todd, G. Lintner in 1939; reposited in the FLMNH

Primary reference: S. D. Webb. 1974. Chronology of Florida Pleistocene mammals. In S. D. Webb (ed.), Pleistocene Mammals of Florida 5-31 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 20636: authorized by John Alroy, entered by John Alroy on 26.03.1995, edited by Mark Uhen and Richard Hulbert

Creative Commons license: CC BY (attribution)

Taxonomic list

• said to be Sangamonian by Webb and late Rancholabrean by Morgan and Seymour 1997; by their definition this includes the Sangamonian
Reptilia
 Squamata - Polychrotidae
Anolis carolinensis2 Voight 1832 green anole
Aves
 Charadriiformes - Scolopacidae
Limnodromus scolopaceus7 Say 1822 long-billed dowitcher
 Charadriiformes - Laridae
Larus sp.7 Linnaeus 1758 gull
 Suliformes - Phalacrocoracidae
Phalacrocorax auritus7 Lesson 1831 double-crested cormorant
 Suliformes - Anhingidae
Anhinga anhinga7 Linnaeus 1766 anhinga
 Pelecaniformes - Ardeidae
Nycticorax nycticorax7 Linnaeus 1758 black-crowned night heron
Botaurus lentiginosus7 Rackett 1813 American bittern
"Casmerodius albus" = Ardea alba7 Linnaeus 1758 great egret
Ardea herodias7 Linnaeus 1758 great blue heron
 Pelecaniformes - Threskiornithidae
"Ajaia ajaja" = Platalea ajaja7
"Ajaia ajaja" = Platalea ajaja7 Linnaeus 1758 roseate spoonbill
 Ciconiiformes - Ciconiidae
Ciconia maltha7 Miller 1910 asphalt stork
 Gaviiformes - Gaviidae
Gavia immer7 Brunnich 1764 Common loon
 Cathartiformes - Cathartidae
Coragyps atratus7 Bechstein 1793 black vulture
 Anseriformes - Anatidae
Aix sponsa7 Linnaeus 1758 wood duck
Aythya collaris7 Donovan 1809 ring-necked duck
Aythya affinis7 Eyton 1838 lesser scaup
Mergus serrator7 Linnaeus 1758 red-breasted merganser
Anas acuta7 Linnaeus 1758 northern pintail
Anas fulvigula7 Ridgway 1874 mottled duck
"Anas carolinensis" = Anas crecca carolinensis7 Gmelin 1789 green-winged teal
"Anas discors" = Spatula discors7 Linnaeus 1766 blue-winged teal
 Columbiformes - Columbidae
Ectopistes migratorius7 Linnaeus 1758 passenger pigeon
 Piciformes - Picidae
"Dendrocopos borealis" = Picoides borealis7
"Dendrocopos borealis" = Picoides borealis7 Vieillot 1809 red-cockaded woodpecker
 Coraciiformes - Alcedinidae
Megaceryle alcyon7 Linnaeus 1758 belted kingfisher
 Strigiformes - Strigidae
Strix varia7 Barton 1799 barred owl
 Gruiformes - Rallidae
"Fulica minor" = Fulica americana shufeldti7 Brodkorb 1964 American coot
Gallinula chloropus7 Linnaeus 1758 Eurasian moorhen
 Gruiformes - Aramidae
Aramus guarauna7 Linnaeus 1762 limpkin
 Gruiformes - Gruidae
"Grus canadensis" = Antigone canadensis7
"Grus canadensis" = Antigone canadensis7 Linnaeus 1758 Sandhill crane
 Podicipediformes - Podicipedidae
Podiceps auritus7 Linnaeus 1758 horned grebe
Podilymbus podiceps7 Linnaeus 1758 pied-billed grebe
 Passeriformes - Cardinalidae
"Richmondena cardinalis" = Cardinalis cardinalis7
"Richmondena cardinalis" = Cardinalis cardinalis7 Linnaeus 1758 northern cardinal
 Passeriformes - Corvidae
Corvus ossifragus7 Wilson 1812 fish crow
 Accipitriformes - Pandionidae
Pandion haliaetus7 Linnaeus 1758 osprey
 Accipitriformes - Accipitridae
Buteo jamaicensis7 Gmelin 1788 red-tailed hawk
Haliaeetus leucocephalus7 Linnaeus 1766 bald eagle
 Galliformes - Phasianidae
Meleagris gallopavo7 Linnaeus 1758 wild turkey
Mammalia
 Proboscidea - Elephantidae
Mammuthus sp. Brookes 1828 mammoth
 Proboscidea - Mammutidae
Mammut americanum7 Kerr 1792 American mastodon
 Sirenia - Trichechidae
Trichechus manatus Linnaeus 1758 manatee
subspecies bakerorum: see Domning 2005
 Chiroptera - Vespertilionidae
Myotis austroriparius6 Rhoads 1897 vesper bat
 Chiroptera - Phyllostomidae
"Mormoops megalophylla" = Mormoops megaphylla
"Mormoops megalophylla" = Mormoops megaphylla Peters 1864 leaf-nosed bat
a bat
 Rodentia - Cricetidae
cf. Sigmodon sp.6 Say and Ord 1825 cotton rat
 Rodentia - Castoridae
Castor canadensis6 Kuhl 1820 American beaver
 Rodentia - Geomyidae
Geomys pinetis6 Rafinesque 1817 southeastern pocket gopher
Thomomys orientalis3 Simpson 1928 pocket gopher
Thomomys cf. orientalis6 Simpson 1928 pocket gopher
 Lagomorpha - Leporidae
Sylvilagus sp.6 Gray 1867 cottontail rabbit
 Theriamorpha - Soricidae
Blarina cf. carolinensis6 Bachman 1837 southern short-tailed shrew
 Carnivora - Ursidae
Tremarctos floridanus Gidley 1928 Florida cave bear
Ursus americanus Pallas 1780 black bear
 Carnivora - Procyonidae
Procyon lotor Linnaeus 1758 raccoon
 Carnivora - Felidae
Puma concolor4, "Leopardus amnicola" = Leopardus wiedii5
Puma concolor4 Linnaeus 1771 puma
"Leopardus amnicola" = Leopardus wiedii5 Schinz 1821 margay
 Carnivora - Canidae
Urocyon cinereoargenteus6 Schreber 1775 gray fox
"Canis dirus" = Aenocyon dirus Leidy 1858 dire wolf
confirmed by Nowak 1979
 Artiodactyla - Bovidae
Bison sp. Hamilton-Smith 1827 bison
 Artiodactyla - Cervidae
Odocoileus virginianus Zimmermann 1780 white-tailed deer
 Artiodactyla - Tayassuidae
Platygonus compressus Leconte 1848 peccary
Mylohyus nasutus6 Leidy 1868 peccary
 Cetacea - Delphinidae
cf. Tursiops sp.6 Gervais 1855 dolphin
 Artiodactyla - Camelidae
"Tanupolama mirifica" = Palaeolama mirifica6
"Tanupolama mirifica" = Palaeolama mirifica6 Simpson 1929 stout-legged llama
 Perissodactyla - Equidae
Equus sp.7 Linnaeus 1758 horse
 Perissodactyla - Tapiridae
"Tapirus veroensis" = Tapirus (Helicotapirus) veroensis3
"Tapirus veroensis" = Tapirus (Helicotapirus) veroensis3 Sellards 1918 tapir
original ID T. veroensis (Woolfenden 1959)
 Cingulata - Pampatheriidae
Holmesina septentrionalis1 Leidy 1889 edentate
 Cingulata - Dasypodidae
Dasypus bellus6 Simpson 1929 beautiful armadillo
  - Mylodontidae
cf. Glossotherium sp.6 Owen 1840 edentate