PBDB Collection

Egelhoff Quarry (Miocene of the United States)

Also known as UNSM Kp-101

Where: Brown County, Nebraska (42.8° N, 100.1° W: paleocoordinates 43.4° N, 96.8° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Cornell Dam Member (Valentine Formation), Barstovian (16.3 - 12.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Reposited in the UNSM

Primary reference: M. R. Voorhies. 1990. Vertebrate paleontology of the proposed Norden Reservoir Area, Brown, Cherry and Keya Paha counties, Nebraska. Technical Report, Division of Archeological Research, Department of Anthropology, University of Nebraska 82-09 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 18141: authorized by John Alroy, entered by John Alroy on 05.08.1992

Creative Commons license: CC BY (attribution)

Taxonomic list

• NISP @1000 (text), 690+ (descriptions), or 297 plus "several hundred" (Skinner and Johnson 1984); middle figure seems to be a very close estimate based on correct count of most common forms

Show authors, comments, and common names

unclassified
-	Florentiamyinae indet. Florentiamyinae indet.
Reptilia
Squamata - Iguanidae	Sceloporus sp.⁶ Sceloporus sp.⁶ Wiegmann 1828 spiny lizard two forms
Squamata - Anguidae	Ophisaurus ventralis⁵, Gerrhonotus sp.⁶ Ophisaurus ventralis⁵ Linnaeus 1766 eastern glass lizard Gerrhonotus sp.⁶ Wiegmann 1828 alligator lizard
Squamata - Boidae	Charina prebottae⁵ Charina prebottae⁵ Brattstrom 1958 sand boa
Squamata - Colubridae	Salvadora paleolineata n. sp.⁵, Lampropeltis similis⁶, Nebraskophis skinneri n. gen. n. sp.⁵, Ameiseophis cf. robinsoni⁶, Elaphe nebraskensis⁵, Neonatrix elongata n. gen. n. sp.⁵, Neonatrix magna⁶, Nerodia sp.⁶, Thamnophis sp.⁶, Paleoheterodon tiheni⁵ Salvadora paleolineata n. sp.⁵ Holman 1973 colubrid snake Lampropeltis similis⁶ Holman 1964 colubrid snake Nebraskophis skinneri n. gen. n. sp.⁵ Holman 1973 colubrid snake Ameiseophis cf. robinsoni⁶ Holman 1976 colubrid snake Elaphe nebraskensis⁵ Holman 1964 colubrid snake Neonatrix elongata n. gen. n. sp.⁵ Holman 1973 colubrid snake Neonatrix magna⁶ Holman 1982 colubrid snake Nerodia sp.⁶ Baird and Girard 1853 water snake Thamnophis sp.⁶ Fitzinger 1843 garter snake Paleoheterodon tiheni⁵ Holman 1964 colubrid snake
Squamata - Scincidae	Eumeces sp.⁵, Eumeces minimus⁹ Eumeces sp.⁵ Wiegmann 1834 skink Eumeces minimus⁹ Holman 1976 skink "Peltosaurus minimus" type of Holman 1976
Testudines - Emydidae	Terrapene cf. ornata⁷, Chrysemys sp.⁶, Emydinae indet.³ Terrapene cf. ornata⁷ Agassiz 1857 Western box turtle Chrysemys sp.⁶ Gray 1844 painted turtle Emydinae indet.³ Rafinesque 1815 turtle
Testudines - Testudinidae	"Geochelone orthopygia" = Geochelone (Hesperotestudo) orthopygia⁵ "Geochelone orthopygia" = Geochelone (Hesperotestudo) orthopygia⁵ Cope 1878 turtle
Testudines - Trionychidae	Trionychidae indet.² Trionychidae indet.² Gray 1825 softshell turtle
Mammalia
Artiodactyla - Leptomerycidae	cf. Pseudoparablastomeryx sp. cf. Pseudoparablastomeryx sp. Frick 1937 ruminant
Artiodactyla - Antilocapridae	Ramoceros cf. osborni⁸ Ramoceros cf. osborni⁸ Matthew 1904 pronghorn
Artiodactyla - Merycoidodontidae	"Merychyus medius" = Ustatochoerus medius¹ "Merychyus medius" = Ustatochoerus medius¹ Leidy 1858 oreodont
Artiodactyla - Camelidae	Protolabis cf. gracilis, Miolabis sp. Protolabis cf. gracilis Leidy 1858 camel Miolabis sp. Hay 1899 camel
Artiodactyla - Tayassuidae	Tayassuidae indet. Tayassuidae indet. Palmer 1897 peccary
Perissodactyla - Rhinocerotidae	Teleoceras sp.⁸ Teleoceras sp.⁸ Hatcher 1894 rhinoceros
Perissodactyla - Equidae	Hipparionini indet.¹ Hipparionini indet.¹ Quinn 1955 hipparionine horse
Carnivora - Procyonidae	Arctonasua gracilis n. sp.⁴, "Probassariscus antiquus" = Bassariscus antiquus⁸ Arctonasua gracilis n. sp.⁴ Baskin 1982 procyonid carnivore "Probassariscus antiquus" = Bassariscus antiquus⁸ Matthew and Cook 1909 ringtail
Carnivora - Mustelidae	Miomustela cf. madisonae⁸ Miomustela cf. madisonae⁸ Douglass 1929 mustelid carnivore
Carnivora - Canidae	Aelurodon sp., Leptocyon vafer⁸ Aelurodon sp. Leidy 1858 bone-crushing dog comparisons to A. "wheelerianus" and A. taxoides Leptocyon vafer⁸ Leidy 1858 canine
Soricomorpha - Talpidae	Domninoides valentinensis, Mystipterus sp. Domninoides valentinensis Reed 1962 mole Mystipterus sp. Hall 1930 mole
Soricomorpha - Soricidae	Alluvisorex sp. Alluvisorex sp. Hutchison 1966 shrew
Tribosphenida - Erinaceidae	Metechinus amplior, Parvericius montanus, Untermannerix copiosus Metechinus amplior Rich 1981 hedgehog Parvericius montanus Koerner 1940 hedgehog Untermannerix copiosus Rich 1981 hedgehog at least 26 specimens of this species and the next two
Lagomorpha - Leporidae	Hypolagus parviplicatus⁸ Hypolagus parviplicatus⁸ Dawson 1958 rabbit
Lagomorpha - Ochotonidae	Russellagus vonhofi, Hesperolagomys fluviatilis Russellagus vonhofi Storer 1970 pika Hesperolagomys fluviatilis Storer 1970 pika
Rodentia - Cricetidae	"Tregomys sp." = Copemys, "Copemys niobrariensis" = Copemys longidens "Tregomys sp." = Copemys Wood 1936 rodent "Copemys niobrariensis" = Copemys longidens Hall 1930 rodent
Rodentia - Sciuridae	cf. Miospermophilus sp., cf. Tamias ateles¹ cf. Miospermophilus sp. Black 1963 squirrel cf. Tamias ateles¹ Hall 1930 chipmunk
Rodentia - Zapodidae	Macrognathomys sp., Schaubeumys cartomylos, Megasminthus tiheni Macrognathomys sp. Hall 1930 jumping mouse Schaubeumys cartomylos Korth 1987 jumping mouse "new sp." Megasminthus tiheni Klingener 1966 jumping mouse
Rodentia - Castoridae	Monosaulax curtus¹, cf. Eucastor tortus Monosaulax curtus¹ Matthew and Cook 1909 beaver cf. Eucastor tortus Leidy 1858 beaver
Rodentia - Geomyidae	"? Phelosaccomys annae" = Parapliosaccomys annae¹ "? Phelosaccomys annae" = Parapliosaccomys annae¹ Korth 1987 pocket gopher
Rodentia - Heteromyidae	Cupidinimus nebraskensis⁸, Lignimus cf. montis, Perognathus trojectioansrum Cupidinimus nebraskensis⁸ Wood 1935 rodent Lignimus cf. montis Storer 1970 rodent Perognathus trojectioansrum Korth 1979 pocket mouse
Rodentia - Mylagaulidae	Mylagaulidae indet.⁸ Mylagaulidae indet.⁸ Cope 1881 rodent
Proboscidea - Gomphotheriidae	Gomphotherium sp.⁸ Gomphotherium sp.⁸ Burmeister 1837 gomphothere
Chiroptera - Vespertilionidae	cf. Antrozous sp. cf. Antrozous sp. Allen 1862 pallid bat a bat
Amphibia
Caudata - Urodela	"Ambystoma priscum n. sp." = Amblystoma⁶, Ambystoma minshalli⁵ "Ambystoma priscum n. sp." = Amblystoma⁶ mole salamander Ambystoma minshalli⁵ Tihen and Chantell 1963 mole salamander
Salientia - Pelobatidae	"Scaphiopus cf. bombifrons" = Spea bombifrons⁵, "Scaphiopus wardorum" = Scaphiopus (Scaphiopus) wardorum⁶ "Scaphiopus cf. bombifrons" = Spea bombifrons⁵ Cope 1863 Plains spadefoot "Scaphiopus wardorum" = Scaphiopus (Scaphiopus) wardorum⁶ Estes and Tihen 1964 spadefoot toad
Salientia - Bufonidae	Bufo cf. hibbardi⁵, Bufo valentinensis⁵ Bufo cf. hibbardi⁵ Taylor 1936 toad Bufo valentinensis⁵ Estes and Tihen 1964 toad
Salientia - Ranidae	Rana sp.⁵ Rana sp.⁵ Linnaeus 1758 frog
Salientia - Hylidae	Hyla sp.⁶, Acris sp.⁶, Pseudacris sp.⁶, Pseudacris nordensis⁶ Hyla sp.⁶ Laurenti 1768 tree frog Acris sp.⁶ Dumeril and Bibron 1841 cricket frog Pseudacris sp.⁶ Fitzinger 1843 chorus frog Pseudacris nordensis⁶ Chantell 1964 chorus frog

¹Alroy 2002; ²Alroy 2006; ³Alroy 2007; ⁴Baskin 1982; ⁵Holman 1973; ⁶Holman 1987; ⁷Holman and Fritz 2005; ⁸Voorhies 1990; ⁹Wellstead 1982