PBDB Collection

Flagstaff Rim I (Eocene of the United States)

Also known as Dry Hole Quarry (21.3 m); Low Red Quarry (18.3 m)

Where: Natrona County, Wyoming (43.2° N, 107.1° W: paleocoordinates 44.8° N, 98.4° W)

• coordinate based on political unit

When: White River Formation, Chadronian (37.2 - 33.9 Ma)

Environment/lithology: terrestrial

Primary reference: R. J. Emry. 1992. Mammalian Range Zones in the Chadronian White River Formation at Flagstaff Rim, Wyoming. In D. R. Prothero, W. A. Berggren (eds.), Eocene-Oligocene Climatic and Biotic Evolution 106-115 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 16960: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Marcot and Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• 0-25 m

Show authors, comments, and common names

Mammalia
Rodentia - Sciuridae	Douglassciurus jeffersoni⁵, Hesperopetes thoringtoni n. sp.⁴ Douglassciurus jeffersoni⁵ Douglass 1902 squirrel Dry Hole Quarry; misspelled as "Douglassiurus jeffersoni" Hesperopetes thoringtoni n. sp.⁴ Emry and Korth 2007 squirrel small: said to be new
Rodentia - Aplodontidae	Prosciurus cf. vetustus Prosciurus cf. vetustus Matthew 1903 mountain beaver
Rodentia - Cylindrodontidae	Cylindrodon natronensis³ Cylindrodon natronensis³ Emry and Korth 1996 rodent
Rodentia - Heliscomyidae	Heliscomys ostranderi⁷ Heliscomys ostranderi⁷ Korth et al. 1991 rodent Dry Hole Quarry
Rodentia -	Griphomys sp.⁵ Griphomys sp.⁵ Wilson 1940 rodent
Rodentia - Eomyidae	Metanoiamys paradoxus⁵, Cristadjidaumo skinneri n. sp.⁵, Litoyoderimys auogoleus², Yoderimys stewarti, Adjidaumo cf. craigi⁵, Adjidaumo minimus⁵, Aulolithomys vexilliames⁵, Paradjidaumo hansonorum⁶, Namatomys lloydi, Namatomys erythrus n. sp.⁵ Metanoiamys paradoxus⁵ Emry and Korth 2012 rodent Dry Hole Quarry; possibly type locality Cristadjidaumo skinneri n. sp.⁵ Emry and Korth 2012 rodent Dry Hole Quarry Litoyoderimys auogoleus² Emry and Korth 1993 rodent "Yoderimys" cf. lustrorum; from Dry Hole Quarry Yoderimys stewarti Russell 1972 rodent described by Emry and Korth 1993; from Dry Hole Quarry and Low Red Quarry Adjidaumo cf. craigi⁵ Storer 1987 rodent Low Red Quarry Adjidaumo minimus⁵ Matthew 1903 rodent Aulolithomys vexilliames⁵ Korth and Emry 1997 rodent Dry Hole Quarry Paradjidaumo hansonorum⁶ Russell 1972 rodent Namatomys lloydi Black 1965 rodent this is the "true" Namatomys" Namatomys erythrus n. sp.⁵ Emry and Korth 2012 rodent Low Red Quarry; not clear if this is a reidentification of N. lloydi, or if they are both present in this collection
Rodentia - Ischyromyidae	Paramys compressidens, "Titanotheriomys veterior" = Ischyromys veterior Paramys compressidens Peterson 1919 rodent "Titanotheriomys veterior" = Ischyromys veterior Matthew 1903 rodent
Lagomorpha - Leporidae	Palaeolagus primus n. sp. Palaeolagus primus n. sp. Emry and Gawne 1986 rabbit from Dry Hole Quarry: see Emry and Gawne 1986
Theriamorpha - Oligoryctidae	"Apternodus altitalonidus" = Oligoryctes altitalonidus "Apternodus altitalonidus" = Oligoryctes altitalonidus Clark 1936 placental
Theriamorpha - Geolabididae	Centetodon chadronensis Centetodon chadronensis Lillegraven et al. 1981 placental Low Red Pocket: Asher et al. 2005
Carnivora - Amphicyonidae	Daphoenictis sp., Brachyrhynchocyon sp.¹ Daphoenictis sp. Hunt 1974 bear-dog at Dry Hole Quarry: Hunt 1998b Brachyrhynchocyon sp.¹ Scott and Jepsen 1936 bear-dog
Carnivora - Ursidae	"Subparictis parvus" = Parictis parvus "Subparictis parvus" = Parictis parvus Clark and Beerbower 1967 bear
Carnivora - Nimravidae	? Nimravidae indet. ? Nimravidae indet. Cope 1880 false sabre-tooth "? paleofelid"; from 60' level, see Bryant 1996
Carnivora - Canidae	Hesperocyon sp.¹ Hesperocyon sp.¹ Scott 1890 canid
Creodonta - Hyaenodontidae	Hyaenodon venturae⁸ Hyaenodon venturae⁸ Mellett 1977 creodont Dry Hole Quarry
Creodonta - Hyainailouridae	Hemipsalodon sp. Hemipsalodon sp. Cope 1885 creodont
Artiodactyla - Merycoidodontidae	Bathygenys sp., Merycoidodon cf. presidioensis¹⁰ Bathygenys sp. Douglass 1902 oreodont Merycoidodon cf. presidioensis¹⁰ Stevens and Stevens 1996 oreodont
Artiodactyla - Leptochoeridae	Stibarus sp. Stibarus sp. Cope 1873 even-toed ungulate
Artiodactyla - Leptomerycidae	Leptomeryx yoderi, "Pseudoprotoceras semicinctus" = Leptomeryx semicinctus Leptomeryx yoderi Schlaikjer 1935 ruminant confirmed by Heaton and Emry 1996 "Pseudoprotoceras semicinctus" = Leptomeryx semicinctus Cope 1889 ruminant
Artiodactyla - Agriochoeridae	Agriochoerus sp., Agriochoerus maximus Agriochoerus sp. Leidy 1850 agriochoerid said to be new Agriochoerus maximus Douglass 1902 agriochoerid
Artiodactyla - Hypisodontidae	Hypisodus sp. Hypisodus sp. Cope 1873 ruminant
Artiodactyla - Praetragulidae	Parvitragulus priscus Parvitragulus priscus Emry 1978 ruminant
Artiodactyla - Protoceratidae	"Leptotragulus profectus" = Trigenicus profectus "Leptotragulus profectus" = Trigenicus profectus Matthew 1903 protoceratid
Artiodactyla - Oromerycidae	Eotylopus reedi Eotylopus reedi Matthew 1910 even-toed ungulate
Artiodactyla - Entelodontidae	Brachyhyops viensis⁹ Brachyhyops viensis⁹ Russell 1980 even-toed ungulate
Artiodactyla - Camelidae	Poebrotherium sp. Poebrotherium sp. Leidy 1847 camel
Perissodactyla - Tapiridae	Colodon sp. Colodon sp. Marsh 1890 tapir
Perissodactyla - Rhinocerotidae	"Caenopus dakotensis" = Penetrigonias dakotensis "Caenopus dakotensis" = Penetrigonias dakotensis Peterson 1920 rhinoceros
Perissodactyla - Hyracodontidae	Hyracodon cf. priscidens Hyracodon cf. priscidens Lambe 1905 odd-toed ungulate at Dry Hole Quarry: Prothero 1996e
Perissodactyla - Brontotheriidae	Brontotheriidae indet. Brontotheriidae indet. Marsh 1873 brontothere
Cimolesta - Apatemyidae	Sinclairella sp. Sinclairella sp. Jepsen 1934 eutherian
Didelphimorphia - Didelphidae	Didelphidae indet.¹ Didelphidae indet.¹ opossum

¹Alroy 2002; ²Emry and Korth 1993; ³Emry and Korth 1996; ⁴Emry and Korth 2007; ⁵Emry and Korth 2012; ⁶Emry and Korth 2013; ⁷Korth et al. 1991; ⁸Lavrov and Emry 1998; ⁹Lucas and Emry 2004; ¹⁰Stevens and Stevens 1996