South-southwest of Franklin (Miocene of the United States)

Where: Franklin County, Nebraska (40.1° N, 99.0° W: paleocoordinates 41.1° N, 95.7° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Ogallala Group, Barstovian (16.3 - 12.5 Ma)

• from 6.5 m of section in a single unit

• group of beds-level stratigraphic resolution

Environment/lithology: "channel"; unlithified, pebbly, brown, green, argillaceous sandstone

• "broad fluvial channels incised through slightly older opaline sandstones... large, sandy, low-sinuosity stream with multiple channels and gravel bars"
• "Green and brown clay pebbles" within "unconsolidated, structureless and planar cross-stratified sands"

Size classes: macrofossils, mesofossils

Collection methods: bulk, sieve,

• "fossils were wet-screened"

Primary reference: R. M. Joeckel. 1988. A new late Miocene herpetofauna from Franklin County, Nebraska. Copeia 1988(3):787-789 [J. Alroy/M. Sommers/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 27481: authorized by John Alroy, entered by John Alroy on 06.12.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Pylodictis olivaris
Mammalia
 Perissodactyla - Equidae
Calippus sp.
Calippus sp. Matthew and Stirton 1930 horse
 Perissodactyla - Rhinocerotidae
Rhinocerotidae indet.
Rhinocerotidae indet. Gray 1821 rhinoceros
 Artiodactyla - Antilocapridae
Merycodontinae indet.1
Merycodontinae indet.1 Matthew 1904 pronghorn
 Artiodactyla - Leptomerycidae
Pseudoparablastomeryx sp.
Pseudoparablastomeryx sp. Frick 1937 ruminant
 Artiodactyla - Camelidae
Camelidae indet.
Camelidae indet. Gray 1821 camel
two forms
 Carnivora - Amphicyonidae
Amphicyonidae indet.
Amphicyonidae indet. Haeckel 1886 bear-dog
 Carnivora - Canidae
Borophaginae indet.1, Carpocyon sp.
Borophaginae indet.1 Simpson 1945 bone-crushing dog
Carpocyon sp. Webb 1969 bone-crushing dog
 Theriamorpha - Talpidae
Talpidae indet., Domninoides sp.
Talpidae indet. Fischer de Waldheim 1817 mole
Domninoides sp. Green 1956 mole
 Theriamorpha - Soricidae
Soricidae indet.
Soricidae indet. Fischer 1814 shrew
 Theriamorpha - Erinaceidae
Erinaceidae indet.
Erinaceidae indet. Fischer von Waldheim 1817 hedgehog
 Lagomorpha - Leporidae
Hypolagus sp.
Hypolagus sp. Dice 1917 rabbit
 Rodentia - Heteromyidae
Cupidinimus sp.
Cupidinimus sp. Wood 1935 rodent
 Rodentia - Castoridae
Castoridae indet.
Castoridae indet. Gray 1821 beaver
 Rodentia - Cricetidae
Copemys sp.
Copemys sp. Wood 1936 mouse
Reptilia
 Squamata - Scincidae
Eumeces sp.
Eumeces sp. Wiegmann 1834 skink
 Squamata - Colubridae
Thamnophis sp., Paleoheterodon tiheni, Salvadora paleolineata, Nerodia sp.
Thamnophis sp. Fitzinger 1843 garter snake
Paleoheterodon tiheni Holman 1964 colubrid snake
Salvadora paleolineata Holman 1973 colubrid snake
Nerodia sp. Baird and Girard 1853 water snake
 Squamata - Boidae
Pterygoboa miocenica
Pterygoboa miocenica Holman 1976 sand boa
 Squamata - Teiidae
Cnemidophorus sp.
Cnemidophorus sp. Wagler 1830 whiptail lizard
 Testudines - Trionychidae
Trionychidae indet.2
Trionychidae indet.2 Gray 1825 softshell turtle
 Testudines - Testudinidae
Geochelone sp.
Geochelone sp. Fitzinger 1835 turtle
Amphibia
 Salientia - Ranidae
Rana sp.
Rana sp. Linnaeus 1758 frog
 Caudata - Urodela
Ambystoma minshalli
Ambystoma minshalli Tihen and Chantell 1963 mole salamander
Actinopteri
 Amiiformes - Amiidae
Amia sp.
Amia sp. Linnaeus 1766 bowfin
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp.
Lepisosteus sp. Agassiz 1843 gar
 Siluriformes - Ictaluridae
Ictaluridae indet.
Ictaluridae indet. Gill 1861 catfish
 Acanthomorphata - Sciaenidae
Aplodinotus sp.
Aplodinotus sp. Rafinesque 1818
1Alroy 2002; 2Alroy 2006