Verdigre Quarry (Miocene of the United States)

Also known as Crocodilian Locality C

Where: Knox County, Nebraska (42.6° N, 98.0° W: paleocoordinates 43.1° N, 94.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Devil's Gulch Member (Valentine Formation), Barstovian (16.0 - 13.6 Ma)

• assignment to the Devil's Gulch Member is based on Voorhies 1971

• group of beds-level stratigraphic resolution

Environment/lithology: crevasse splay; conglomeratic sandstone

• "a depression on a broad floodplain adjacent to a large river which flooded to form the bonebed" (Voorhies 1971)
• "a local lens of conglomeratic sand" (Voorhies 1971)

Size classes: macrofossils, mesofossils

Reposited in the UNSM

Primary reference: M. R. Voorhies. 1969. Taphonomy and population dynamics of an Early Pliocene vertebrate fauna, Know County, Nebraska. University of Wyoming Contributions to Geology Special Paper 1:1-69 [A. Behrensmeyer/A. Behrensmeyer/M. Kosnik]more details

Purpose of describing collection: taphonomic analysis

PaleoDB collection 18443: authorized by John Alroy, entered by John Alroy on 05.08.1992, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Euselachii -
Batoidea indet.9 ray
"ray"
 Selachii -
Selachii indet.9 shark
"shark"
Actinopteri
 Acanthomorphata - Sciaenidae
Sciaenidae indet.9 Cuvier 1928
"drum"
 Teleostei -
Siluriformes indet.9 catfish
"catfish"
 Amiiformes - Amiidae
Amia sp.9 Linnaeus 1766 bowfin
 Lepisosteiformes - Lepisosteidae
Lepisosteidae indet.9 Cuvier 1825 gar
"gar"
Reptilia
 Testudines - Trionychidae
Trionychidae indet.2 Gray 1825 softshell turtle
 Loricata -
Crocodylia indet.9 crocodilian
"crocodilian teeth"
Mammalia
 Rodentia - Cricetidae
Peromyscus sp. Gloger 1841 deer mouse
 Rodentia - Sciuridae
Sciuridae indet. Gray 1821 squirrel
 Rodentia - Geomyidae
Geomyidae indet. Bonaparte 1845 pocket gopher
 Rodentia - Heteromyidae
Heteromyidae indet. Gray 1868 rodent
 Rodentia - Castoridae
Prodipoides burgensis5 Korth 2002 beaver
Eucastor tortus5 Leidy 1858 beaver
 Rodentia - Mylagaulidae
Mylagaulidae indet.1 Cope 1881 rodent
 Rodentia - Zapodidae
Megasminthus tiheni Klingener 1966 jumping mouse
 Lagomorpha - Leporidae
Hypolagus cf. fontinalis Dawson 1958 rabbit
 Lipotyphla - Erinaceidae
Metechinus sp.7 Matthew 1929 hedgehog
 Lipotyphla - Talpidae
Talpidae indet. Fischer de Waldheim 1817 mole
 Perissodactyla - Rhinocerotidae
cf. Teleoceras sp. Hatcher 1894 rhinoceros
 Perissodactyla - Equidae
Hippotherium sp.6 Kaup 1832 hipparionine horse
Pseudhipparion cf. retrusum Cope 1889 hipparionine horse
Calippus (Grammohippus) sp. Hulbert 1988 horse
new species of Hulbert
Calippus cf. placidus Leidy 1869 horse
Megahippus sp. McGrew 1938 anchitheriine horse
Hypohippus affinis Leidy 1858 anchitheriine horse
 Tribosphenida - Plesiosoricidae
Plesiosorex sp.1 Pomel 1848 placental
 Tribosphenida - Soricidae
? Limnoecus sp. Stirton 1930 shrew
 Carnivora - Ursidae
Plithocyon sp.3 Ginsburg 1955 bear
 Carnivora - Procyonidae
Procyonidae indet.1 Gray 1825 procyonid carnivore
 Carnivora - Amphicyonidae
Ischyrocyon sp.4 Matthew and Gidley 1904 bear-dog
 Carnivora - Mustelidae
Mustelidae indet. Fischer 1817 mustelid carnivore
Mustelidae indet.1 Fischer 1817 mustelid carnivore
Leptarctus sp. Leidy 1856 mustelid carnivore
 Carnivora - Canidae
Leptocyon vafer8 Leidy 1858 canine
Borophaginae indet.1 Simpson 1945 bone-crushing dog
Cynarctus sp. Matthew 1902 bone-crushing dog
Aelurodon cf. ferox1 Leidy 1858 bone-crushing dog
 Carnivora - Felidae
Pseudaelurus sp. Leidy 1858 cat
 Proboscidea - Gomphotheriidae
Gomphotherium sp. Burmeister 1837 gomphothere
 Artiodactyla - Tayassuidae
Prosthennops xiphodonticus10 Barbour 1925 peccary
 Artiodactyla - Camelidae
Camelidae indet. Gray 1821 camel
"? Pliauchenia" and "? Megatylopus"
Procamelus cf. grandis Gregory 1939 camel
 Artiodactyla - Merycoidodontidae
Ustatochoerus medius Leidy 1858 oreodont
 Artiodactyla - Palaeomerycidae
"Cranioceras skinneri" = Procranioceras skinneri
"Cranioceras skinneri" = Procranioceras skinneri Frick 1937 ruminant
 Artiodactyla - Antilocapridae
"Merycodus furcatus" = Cosoryx furcatus
"Merycodus furcatus" = Cosoryx furcatus Leidy 1869 pronghorn
 Artiodactyla - Moschidae
Blastomerycinae indet.1 Frick 1937 musk deer