PBDB Collection

Flagstaff Rim IV (Eocene of the United States)

Also known as Al's Pocket; Jenny's Pocket; Middle Fork of Lone Tree Gulch

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

• coordinate based on political unit

• small collection-level geographic resolution

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

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

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 16963: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Chris Bell, Terri Cleary and Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• Al's Pocket and Jenny's Pocket are from 16 m below Ash F: Korth and Emry 1997b
86-114 m, Ash D - Ash F

Show authors, comments, and common names

unclassified
-	"Novacek leptictid" acutidens⁷ "Novacek leptictid" acutidens⁷ pers. commun. 16.2.00: "Frictops emryi"
Reptilia
Squamata - Xantusiidae	Palaeoxantusia cf. borealis¹¹ Palaeoxantusia cf. borealis¹¹ Holman 1972 night lizard USNM 214716-214721, 214728
Squamata - Rhineuridae	Spathorhynchus natronicus² Spathorhynchus natronicus² Berman 1977 worm lizard Paratype specimen (AMNH 8678) from "NE 1/4 sec. 27, T31N, R83W, Middle Fork of Lone Tree Gulch, Natrona Co., Wyoming, White River Formation, 20 ft. below Ash F, Early Oligocene (Chadronian)." (p. 987)
Squamata - Anguidae	Helodermoides tuberculatus¹⁰ Helodermoides tuberculatus¹⁰ Douglass 1903 squamates AMNH Frick collection no. 8697, incomplete parietal; 8698, incomplete parietal
Mammalia
Chiroptera -	Chiroptera indet. Chiroptera indet. Blumenbach 1779 bat a bat
Macroscelidea - Amphilemuridae	Ankylodon sp. Ankylodon sp. Patterson and McGrew 1937 elephant shrew
Pholidota - Patriomanidae	"Patriomanis americanus" = Patriomanis americana "Patriomanis americanus" = Patriomanis americana Emry 1970 pangolin
Theriamorpha - Epoicotheriidae	Epoicotherium cf. unicum Epoicotherium cf. unicum Douglass 1905 placental
Creodonta - Hyaenodontidae	Hyaenodon megaloides, Hyaenodon montanus, Hyaenodon mustelinus Hyaenodon megaloides Mellett 1977 creodont Hyaenodon montanus Douglass 1902 creodont Hyaenodon mustelinus Scott 1894 creodont
Carnivora - Ursidae	Parictis sp. Parictis sp. Scott 1893 bear assigned to "Subparictis" by Baskin and Tedford 1996
Carnivora - Amphicyonidae	Brachyrhynchocyon sp.¹, Daphoenictis sp. Brachyrhynchocyon sp.¹ Scott and Jepsen 1936 bear-dog Daphoenictis sp. Hunt 1974 bear-dog discussed by Hunt 1996 and said to be 10' above Ash E
Carnivora - Canidae	"Hesperocyon paterculus" = Hesperocyon gregarius "Hesperocyon paterculus" = Hesperocyon gregarius Cope 1873 canid described by Wang and Tedford 1994; specimens listed by Wang 1994 from 6, 10, 15, 20, and 30 ft above Ash D and both "in Ash F" and "in Titanothere channel (laterally replaced by Ash F"
Carnivora - Nimravidae	Dinictis sp., "Hoplophoneus mentalis" = Hoplophoneus primaevus¹ Dinictis sp. Leidy 1854 false sabre-tooth "Hoplophoneus mentalis" = Hoplophoneus primaevus¹ Leidy and Owen 1851 false sabre-tooth
Perissodactyla - Equidae	Equidae indet.¹ Equidae indet.¹ Gray 1821 horse
Perissodactyla - Brontotheriidae	Brontotheriidae indet. Brontotheriidae indet. Marsh 1873 brontothere
Perissodactyla - Rhinocerotidae	? Trigonias sp., ? Subhyracodon sp. ? Trigonias sp. Lucas 1900 rhinoceros ? Subhyracodon sp. Wood 1927 rhinoceros
Perissodactyla - Hyracodontidae	Hyracodon cf. priscidens Hyracodon cf. priscidens Lambe 1905 odd-toed ungulate
Artiodactyla - Entelodontidae	Archaeotherium cf. coarctatum Archaeotherium cf. coarctatum Cope 1889 even-toed ungulate
Artiodactyla - Leptochoeridae	Stibarus sp. Stibarus sp. Cope 1873 even-toed ungulate
Artiodactyla - Merycoidodontidae	"Merycoidodon forsythae n. sp." = Miniochoerus forsythae, Bathygenys hedlundae⁹ "Merycoidodon forsythae n. sp." = Miniochoerus forsythae Schultz and Falkenbach 1968 oreodont Bathygenys hedlundae⁹ Schultz and Falkenbach 1968 oreodont
Artiodactyla - Camelidae	Poebrotherium eximium⁸ Poebrotherium eximium⁸ Hay 1902 camel
Artiodactyla - Protoceratidae	"Leptotragulus profectus" = Trigenicus profectus, Pseudoprotoceras longinaris "Leptotragulus profectus" = Trigenicus profectus Matthew 1903 protoceratid Pseudoprotoceras longinaris Cook 1934 protoceratid
Artiodactyla - Hypisodontidae	Hypisodus sp. Hypisodus sp. Cope 1873 ruminant
Artiodactyla - Leptomerycidae	Leptomeryx speciosus, Leptomeryx mammifer Leptomeryx speciosus Lambe 1908 ruminant Leptomeryx mammifer Cope 1885 ruminant
Artiodactyla - Oromerycidae	Eotylopus reedi Eotylopus reedi Matthew 1910 even-toed ungulate
Theriamorpha - Geolabididae	Centetodon chadronensis Centetodon chadronensis Lillegraven et al. 1981 placental Al's Pocket and Jenny's Pocket: Asher et al. 2005
Theriamorpha - Apternodontidae	Apternodus gregoryi, Apternodus brevirostris Apternodus gregoryi Schlaikjer 1933 placental Apternodus brevirostris Schlaikjer 1934 placental
Theriamorpha - Oligoryctidae	Oligoryctes cameronensis, "Apternodus altitalonidus" = Oligoryctes altitalonidus Oligoryctes cameronensis Hough 1956 placental "Apternodus altitalonidus" = Oligoryctes altitalonidus Clark 1936 placental
Lagomorpha - Leporidae	Megalagus brachyodon, Palaeolagus temnodon, Chadrolagus emryi Megalagus brachyodon Matthew 1903 rabbit Palaeolagus temnodon Douglass 1902 rabbit Chadrolagus emryi Gawne 1978 rabbit
Rodentia -	Nonomys simplicidens Nonomys simplicidens Emry and Dawson 1972 rodent
Rodentia - Cylindrodontidae	Cylindrodon natronensis³, Cylindrodon solarborus³ Cylindrodon natronensis³ Emry and Korth 1996 rodent Cylindrodon solarborus³ Emry and Korth 1996 rodent
Rodentia - Aplodontidae	Prosciurus vetustus Prosciurus vetustus Matthew 1903 mountain beaver
Rodentia - Sciuridae	"? Protosciurus jeffersoni" = Douglassciurus jeffersoni "? Protosciurus jeffersoni" = Douglassciurus jeffersoni Douglass 1902 squirrel
Rodentia - Heliscomyidae	Heliscomys ostranderi⁶ Heliscomys ostranderi⁶ Korth et al. 1991 rodent
Rodentia - Eomyidae	Aulolithomys vexilliames n. sp.⁵, Adjidaumo minimus, Paradjidaumo nanus n. sp.⁴, Namatomys lloydi Aulolithomys vexilliames n. sp.⁵ Korth and Emry 1997 rodent from Jenny's Pocket; "A. sp." Adjidaumo minimus Matthew 1903 rodent Paradjidaumo nanus n. sp.⁴ Emry and Korth 2013 rodent Namatomys lloydi Black 1965 rodent this is the "true" Namatomys"
Rodentia - Ischyromyidae	"Titanotheriomys veterior" = Ischyromys veterior "Titanotheriomys veterior" = Ischyromys veterior Matthew 1903 rodent
Didelphimorphia - Didelphidae	Didelphidae indet.¹ Didelphidae indet.¹ opossum

¹Alroy 2002; ²Berman 1977; ³Emry and Korth 1996; ⁴Emry and Korth 2013; ⁵Korth and Emry 1997; ⁶Korth et al. 1991; ⁷Novacek 2000; ⁸Prothero 1996; ⁹Schultz and Falkenbach 1968; ¹⁰Sullivan 1979; ¹¹Sullivan and Holman 1996