Kennedy's Hole (Eocene of the United States)

Where: Uintah County, Utah (40.1° N, 109.3° W: paleocoordinates 42.8° N, 98.3° W)

• coordinate based on nearby landmark

When: Uinta Formation, Uintan (46.2 - 39.7 Ma)

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: D. R. Prothero. 1996. Magnetic stratigraphy and biostratigraphy of the middle Eocene Uinta Formation, Uinta Basin, Utah. In D. R. Prothero and R. J. Emry (eds.), The Terrestrial Eocene-Oligocene Transition in North America 3-24 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 16589: authorized by John Alroy, entered by John Alroy on 15.05.2002, edited by Roger Benson, Jonathan Marcot, Terri Cleary and Evangelos Vlachos

Creative Commons license: CC BY (attribution)

Taxonomic list

• includes some parts of "Uinta C" list of Kay 1957
at top of Prothero's Wagonhound Canyon section in eastern Uintah County
between White River Pocket and Myton Pocket based on Peterson 1928a, who places it at the base of Uinta C
magnetic polarity stratigraphy of Prothero 1996a suggests that Kennedy's Hole and Myton Pocket are at a very similar level, but that an exact ordering is impossible
 Ferae -
Procynodictis vulpiceps Wortman and Matthew 1899 placental
 Creodonta -
Oxyaenodon dysodus1 Matthew 1899 creodont
species present according to Prothero; type present in "Uinta C" according to Denison
 Perissodactyla - Hyracodontidae
Triplopus obliquidens Scott and Osborn 1887 odd-toed ungulate
Triplopus implicatus Cope 1873 odd-toed ungulate
this or the following may include "Hyrachyus douglassi" of Wood 1934 from Kennedy's Hole (= Triplopus sp. according to Radinsky 1967a)
 Perissodactyla - Amynodontidae
Amynodon advenus Marsh 1875 odd-toed ungulate
 Perissodactyla -
Isectolophus annectens7 Scott and Osborn 1887 odd-toed ungulate
Devil's Playground near Kennedy's Hole, Uinta C; not clear why this is omitted by Prothero
 Perissodactyla - Equidae
Epihippus gracilis1 Marsh 1871 horse
 Perissodactyla - Brontotheriidae
Protitanotherium sp. Osborn 1908 brontothere
may include type of "P. superbum" of Osborn 1908 from "Horizon C, probably higher levels" and "P. emarginatum" of Kay 1957 from "Uinta C"
"Pseudodiplacodon sp." = Diplacodon1 Marsh 1875 brontothere
Diplacodon emarginatus n. sp.5 Hatcher 1895 brontothere
Metatelmatherium ultimum n. sp. Osborn 1908 brontothere
includes both the type of "Manteoceras uintensis" Douglass 1909d from 5 mi NE of Well 2, lower "horizon 'C' and the type of "Telmatherium ultimum" Osborn 1908 from "lower portion of Uinta C"; may also include type of "Telmatherium (?) altidens" of Osborn 1908 from "level C"
 Artiodactyla - Protoceratidae
Leptoreodon marshi Wortman 1898 protoceratid
Leptotragulus proavus Scott and Osborn 1887 protoceratid
 Artiodactyla - Agriochoeridae
Protoreodon pumilus Marsh 1875 agriochoerid
Protoreodon petersoni Gazin 1955 agriochoerid
Protoreodon minor n. sp. Scott 1899 agriochoerid
see also Thorpe 1937, Gazin 1955
 Artiodactyla - Homacodontidae
"Bunomeryx montanus n. sp." = Bunomeryx montanus, "Bunomeryx elegans" = Bunomeryx montanus, Hylomeryx quadricuspis n. sp.
"Bunomeryx montanus n. sp." = Bunomeryx montanus Wortman 1898 even-toed ungulate
see Gazin 1955, who does not give provenance
"Bunomeryx elegans" = Bunomeryx montanus Wortman 1898 even-toed ungulate
Hylomeryx quadricuspis n. sp. Peterson 1919 even-toed ungulate
see Gazin 1955: from "south of Kennedy's hole, west of Dragon-Vernal road, Uinta County"; "Base of Horizon C" according to Peterson 1919
 Artiodactyla - Oromerycidae
Protylopus petersoni Wortman 1898 even-toed ungulate
probably the type, see Gazin 1955; however, Riggs 1912 indicates that "Protylopus" (presumably this material) is from below the Amynodon Sandstone in Kennedy's Basin; may also include CM specimen from "eastern part of the Uinta Basin at the base of horizon C" of Peterson 1919
 Primates - Omomyidae
Ourayia uintensis Osborn 1895 tarsier
see also Olsen 1961, Krishtalka 1978; includes material assigned to "Hemiacodon jepseni" by Robinson 1968
 Rodentia - Reithroparamyidae
"Reithroparamys sciuroides" = Reithroparamys sciuroides1, "Ischyrotomus gidleyi n. sp." = Reithroparamys sciuroides7
"Reithroparamys sciuroides" = Reithroparamys sciuroides1 Scott and Osborn 1887 rodent
see also Wood 1962, who does not give the exact locality: type; presumably "Leptotomus sp." of Kay 1957
"Ischyrotomus gidleyi n. sp." = Reithroparamys sciuroides7 Scott and Osborn 1887 rodent
"Base of Horizon C... Four miles northeast of Well No. 2, eastern end of Uinta Basin": listed as "Reithroparamys gidleyi" from "Myton" by Wood 1962 and Black and Sutton 1984, and from Kennedy's Hole by Prothero
 Rodentia - Protoptychidae
Protoptychus hatcheri Scott 1895 rodent
see also Wilson 1949d, who erroneously lists the type as being from Myton
 Rodentia - Ischyromyidae
Pseudotomus petersoni1 Matthew 1910 rodent
see also Wood 1962, who does not give the locality; type
Thisbemys medius Peterson 1919 rodent
"Leptotomus leptodus" = Paramys leptodus Cope 1873 rodent
see also Wood 1962
 Condylarthra - Hyopsodontidae
Hyopsodus uintensis n. sp.2 Osborn 1902 condylarth
type of Osborn 1902 from "Uinta C"; see also Krishtalka 1979; Hyopsodus is not discussed at all by Prothero, and the early AMNH Uinta C material is mostly from Kennedy's Hole
 Testudines - Pantestudinidae
"Hadrianus robustus n. sp." = Hadrianus corsoni3
"Hadrianus robustus n. sp." = Hadrianus corsoni3 Leidy 1871 turtle
 Testudines - Trionychidae
"Amyda scutumantiquum" = Oliveremys uintaensis3
"Amyda scutumantiquum" = Oliveremys uintaensis3 Cope 1873 softshell turtle
CM 3272, partial shell
 Testudinata - Baenidae
"Baena emiliae" = Baena arenosa6
"Baena emiliae" = Baena arenosa6 Leidy 1870 turtle
Princeton University 11263, partial shell
 Squamata - Anguidae
Glyptosaurus sp.4 Marsh 1871 squamates
PU 11303, fragments of skull