PBDB Collection

Leptarctus Quarry (Miocene of the United States)

Where: Cherry County, Nebraska (42.8° N, 100.8° W)

• Paleocoordinates: 45.5° N, 95.6° W (Wright 2013)

• coordinate based on political unit

• small collection-level geographic resolution

When: Merritt Dam Member (Ash Hollow Formation), Clarendonian (12.5 - 9.4 Ma)

Environment/lithology: terrestrial

Primary reference: C. B. Schultz, M. Schultz, and L. D. Martin. 1970. A new Tribe of Saber-toothed cats (Barbourofelini) from the Pliocene of North America. Bulletin of the Nebraska State Museum 9(1):1-31 [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 18227: authorized by John Alroy, entered by John Alroy on 05.08.1992, edited by Jonathan Marcot

Creative Commons license: CC0 (CC0)

Taxonomic list

• 409 F:AM and "several" UCMP specimens: Skinner and Johnson 1984

Show authors, comments, and common names

Mammalia
Perissodactyla - Equidae	Hypohippus sp.⁷, Protohippus cf. gidleyi⁶, Calippus regulus¹², Calippus cerasinus⁵, Pseudhipparion skinneri⁶, Neohipparion affine⁹, Neohipparion trampasense⁴ Hypohippus sp.⁷ Leidy 1858 anchitheriine horse Protohippus cf. gidleyi⁶ Hulbert 1988 horse pers. commun. Calippus regulus¹² Johnston 1937 horse DUPLICATE REF 781 or 3519 Calippus cerasinus⁵ Hulbert 1988 horse Pseudhipparion skinneri⁶ Webb and Hulbert 1986 hipparionine horse pers. commun. Neohipparion affine⁹ Leidy 1869 hipparionine horse Neohipparion trampasense⁴ Edwards 1982 hipparionine horse
Perissodactyla - Rhinocerotidae	Teleoceras major¹⁰, Aphelops megalodus¹⁰ Teleoceras major¹⁰ Hatcher 1894 rhinoceros Aphelops megalodus¹⁰ Cope 1873 rhinoceros
Artiodactyla - Merycoidodontidae	"Merychyus major" = Ustatochoerus major¹ "Merychyus major" = Ustatochoerus major¹ Leidy 1858 oreodont
Artiodactyla - Antilocapridae	Plioceros floblairi³ Plioceros floblairi³ Frick 1937 pronghorn "tentatively referred"
Artiodactyla - Dromomerycidae	Cranioceras unicornis¹ Cranioceras unicornis¹ Matthew 1918 ruminant
Artiodactyla - Tayassuidae	Macrogenis sp.¹⁴ Macrogenis sp.¹⁴ Wright 1993 peccary new Leptarctus Quarry species; manuscript name is "M. skinneri"; see also Wright 1993, 1998
Carnivora - Nimravidae	Barbourofelis morrisi n. sp. Barbourofelis morrisi n. sp. Schultz et al. 1970 false sabre-tooth
Carnivora - Canidae	Leptocyon matthewi¹¹, Aelurodon taxoides¹³, Carpocyon robustus¹³, Epicyon saevus², Epicyon haydeni², Paratomarctus euthos¹³ Leptocyon matthewi¹¹ Tedford et al. 2009 canine Aelurodon taxoides¹³ Hatcher 1894 bone-crushing dog Carpocyon robustus¹³ Green 1948 bone-crushing dog Epicyon saevus² Leidy 1858 bone-crushing dog confirmed by Wang et al. 1999 Epicyon haydeni² Leidy 1858 bone-crushing dog confirmed by Wang et al. 1999 Paratomarctus euthos¹³ McGrew 1935 bone-crushing dog
Carnivora - Mustelidae	Leptarctus wortmani⁸ Leptarctus wortmani⁸ Matthew 1924 mustelid carnivore F:AM 25154, 25172, and 25174

¹Alroy 2002; ²Baskin 1998; ³Frick 1937; ⁴Hulbert 1987; ⁵Hulbert 1988; ⁶Hulbert 1989; ⁷Hussain 1975; ⁸Korth and Baskin 2009; ⁹MacFadden 1984; ¹⁰Prothero 2005; ¹¹Tedford et al. 2009; ¹²Voorhies et al. 1987; ¹³Wang et al. 1999; ¹⁴Wright 1983