PBDB Collection

Greenside Quarry (Miocene of the United States)

Where: Sioux County, Nebraska (42.4° N, 103.8° W: paleocoordinates 43.1° N, 99.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: lower Member (Sheep Creek Formation), Hemingfordian (20.4 - 16.0 Ma)

Environment/lithology: fluvial; massive, red, sandy siltstone

• The dominant lithology of the lower part is massive, pinkish brown sandy silt and sandy clay; ledges or lenses of hard, blocky-weathering, gray sandstone alternate with beds of light-colored, non-resistant sandstone. These hard layers are not persistent but occur at varying levels as hard, sheetlike lenses.

Size class: macrofossils

Collected by Wilson (1935 - 1939?), Skinner (1940's) in 1935 - 1940's; reposited in the AMNH

Primary reference: M. F. Skinner, S. M. Skinner, and R. J. Gooris. 1977. Stratigraphy and biostratigraphy of late Cenozoic deposits in central Sioux County, western Nebraska. Bulletin of the American Museum of Natural History 158(5):263-370 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 17920: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Mammalia
Perissodactyla - Chalicotheriidae	Tylocephalonyx skinneri n. sp.¹ Tylocephalonyx skinneri n. sp.¹ Coombs 1979 chalicothere
Perissodactyla - Rhinocerotidae	Teleoceras americanum⁷, Aphelops megalodus⁷ Teleoceras americanum⁷ Yatkola and Tanner 1979 rhinoceros Aphelops megalodus⁷ Cope 1873 rhinoceros
Perissodactyla - Equidae	Anchitheriinae indet.², Archaeohippus penultimus, Merychippus primus, Acritohippus tertius⁶ Anchitheriinae indet.² Leidy 1869 anchitheriine horse Archaeohippus penultimus Matthew 1924 anchitheriine horse Merychippus primus Osborn 1918 horse Acritohippus tertius⁶ Osborn 1918 horse Supplemental Table S1
Artiodactyla - Antilocapridae	Merycodus sabulonis Merycodus sabulonis Matthew and Cook 1909 pronghorn see also Frick 1937
Artiodactyla - Moschidae	"Blastomeryx medius" = Blastomeryx gemmifer³ "Blastomeryx medius" = Blastomeryx gemmifer³ Cope 1874 musk deer
Artiodactyla - Dromomerycidae	Bouromeryx americanus⁵, Bouromeryx submilleri n. sp., "Subdromomeryx scotti n. sp." = Subdromomeryx antilopinus Bouromeryx americanus⁵ Douglass 1899 ruminant Bouromeryx submilleri n. sp. Frick 1937 ruminant see also Frick 1937 "Subdromomeryx scotti n. sp." = Subdromomeryx antilopinus Scott 1893 ruminant see also Frick 1937
Artiodactyla - Merycoidodontidae	Merychyus relictus, "Brachycrus wilsoni n. sp." = Brachycrus laticeps⁹ Merychyus relictus Matthew and Cook 1909 oreodont see Schultz and Falkenbach 1947 "Brachycrus wilsoni n. sp." = Brachycrus laticeps⁹ Douglass 1900 oreodont
Carnivora - Canidae	Leptocyon leidyi¹⁰, Osbornodon fricki¹¹, Protomarctus optatus¹², Cynarctoides acridens¹² Leptocyon leidyi¹⁰ Tedford et al. 2009 canine Osbornodon fricki¹¹ Wang 1994 canid Protomarctus optatus¹² Matthew 1924 bone-crushing dog Cynarctoides acridens¹² Barbour and Cook 1914 bone-crushing dog
Carnivora - Amphicyonidae	Amphicyon sp.⁴ Amphicyon sp.⁴ Lartet 1836 bear-dog
Carnivora - Felidae	Pseudaelurus validus⁸ Pseudaelurus validus⁸ Rothwell 2001 cat F:AM 61827
Tribosphenida - Erinaceidae	Brachyerix macrotis Brachyerix macrotis Matthew 1933 hedgehog described by Rich 1981

¹Coombs 1979; ²Forsten 1991; ³Frick 1937; ⁴Hunt 1998; ⁵Liter and Prothero 2003; ⁶Mihlbachler et al. 2011; ⁷Prothero 2005; ⁸Rothwell 2001; ⁹Schultz and Falkenbach 1940; ¹⁰Tedford et al. 2009; ¹¹Wang 1994; ¹²Wang et al. 1999