Myton Pocket: Uintan, Utah
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
- Anseriformes
- Anatidae
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Eonessa anaticula n. gen., n. sp.
Wetmore 1938
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Wetmore 1938 | |||||||||
collected by John Clark in 1936 | ||||||||||
Reptilia
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Procaimanoidea utahensis n. gen., n. sp.
Gilmore 1946
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Gilmore 1946 | |||||||||
Mammalia
- Perissodactyla
- Hyracodontidae
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Prothyracodon obliquidens
(Scott and Osborn 1887)
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also "Triplopus sp.": former from Myton Pocket, see Peterson 1919 | ||||||||||
= Triplopus obliquidens
Scott and Osborn 1887
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Alroy 2002 | |||||||||
Prothyracodon uintense n. sp.
Peterson 1919
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from Myton Pocket (see Peterson 1919) and also "E. sp.": see Radinsky 1967a | ||||||||||
= Epitriplopus uintensis
Peterson 1919
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Alroy 2002 | |||||||||
Mammalia
- Perissodactyla
- Rhinocerotidae
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Uintaceras radinskyi n. sp.
Holbrook and Lucas 1997
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Holbrook and Lucas 1997 | |||||||||
Myton Pocket; "Forstercooperia sp." of Holbrook 1994 | ||||||||||
Mammalia
- Perissodactyla
- Amynodontidae
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Amynodon advenus
(Marsh 1875)
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Prothero 1996 | |||||||||
Myton Pocket; probably includes "A. intermedius" and "A. advenum?" of Wall 1982 from Uinta C | ||||||||||
Mammalia
- Perissodactyla
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Isectolophus annectens n. sp.
Scott and Osborn 1887
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Peterson 1919 | |||||||||
Myton Pocket; not clear why this is omitted by Kay, who may have been confused by the unclear provenance of the type; also includes his "Parisectolophus sp." | ||||||||||
Schizolophodon cuspidens n. gen., n. sp.
Peterson 1919
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Peterson 1919 | |||||||||
synonym of Isectolophus annectens | ||||||||||
Mammalia
- Perissodactyla
- Brontotheriidae
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Diplacodon elatum
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genus listed at Myton Pocket by Prothero 1996a; genus invalid according to Mader 2000; also "Brontotherium curtum": status unclear as Mader 1989 restricts Megacerops to the Chadronian | ||||||||||
= Brontotheriidae indet.
Marsh 1873
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Alroy 2002 | |||||||||
Mammalia
- Perissodactyla
- Equidae
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Epihippus gracilis
(Marsh 1871)
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includes "E. parvus" of Prothero 1996a from Myton Pocket | ||||||||||
Mammalia
- Oromerycidae
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Oromeryx sp.
Marsh 1894
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= Oromeryx plicatus
Marsh 1894
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Prothero 1996 | |||||||||
also said to be from Myton Pocket by Peterson 1919 | ||||||||||
Protylopus annectens n. sp.
Peterson 1919
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see Gazin 1955: Myton Pocket | ||||||||||
Mammalia
- Protoceratidae
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Leptotragulus clarki
Gazin 1955
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type is from Protylopus Quarry: see Gazin 1955 | ||||||||||
Leptotragulus medius n. sp.
Peterson 1919
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at Myton Pocket, including 23 specimens from Protylopus Quarry, and type is from "Uinta C, 6 miles east of Myton," which appears to be the same locality: see Gazin 1955 | ||||||||||
Leptotragulus proavus
Scott and Osborn 1887
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at Myton Pocket: Prothero 1996a | ||||||||||
Leptoreodon sp.
Wortman 1898
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= Leptoreodon marshi
Wortman 1898
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Prothero 1996 | |||||||||
Myton Pocket; includes "Camelomeryx sp." | ||||||||||
Mammalia
- Agriochoeridae
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Agriochoeridae indet.
Leidy 1869
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Protoreodon petersoni n. sp.
Gazin 1955
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Gazin 1955 | |||||||||
Myton Pocket | ||||||||||
Protoreodon pumilus
(Marsh 1875)
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see Gazin 1955: includes "Protagriochoerus annectens" from Myton Pocket, see Gazin 1955 | ||||||||||
Protoreodon medius n. sp.
Peterson 1919
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Peterson 1919 | |||||||||
synonym of Protoreodon pumilus | ||||||||||
Peterson 1919 very clearly lists type of "P. medius" from Myton Pocket, but no Uinta C material is indicated by Prothero 1996a | ||||||||||
Diplobunops matthewi n. sp.
Peterson 1919
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Myton Pocket; see also Peterson 1931c, Black 1978 | ||||||||||
= Agriochoerus matthewi
Peterson 1919
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Peterson 1919 | |||||||||
original and current combination Diplobunops matthewi | ||||||||||
Mammalia
- Homacodontidae
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Bunomeryx elegans
Wortman 1898
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synonym of Bunomeryx montanus | ||||||||||
at Myton Pocket: Prothero 1996a | ||||||||||
Hylomeryx quadricuspis
(Peterson 1919)
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Peterson 1919 | |||||||||
paratypes, from Myton Pocket | ||||||||||
Mytonomeryx scotti n. sp.
Gazin 1955
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Gazin 1955 | |||||||||
from Myton Pocket | ||||||||||
Auxontodon pattersoni
Gazin 1958
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Gazin 1958 | |||||||||
"near entrance of Myton Pocket" (1 measurement) | ||||||||||
Pentacemylus progressus
Peterson 1932
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Gazin 1955 | |||||||||
Myton Pocket | ||||||||||
Mammalia
- Camelidae
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Poebrodon kayi n. sp.
Gazin 1955
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Gazin 1955 | |||||||||
from Myton Pocket | ||||||||||
Mammalia
- Creodonta
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Limnocyon douglassi
Peterson 1919
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= Limnocyon potens
Matthew 1909
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Prothero 1996 | |||||||||
Myton Pocket | ||||||||||
Mimocyon longipes n. sp.
Peterson 1919
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type is from Myton Pocket: see Peterson 1919 | ||||||||||
= Proviverra longipes
Peterson 1919
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Alroy 2002 | |||||||||
Mammalia
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Uintacyon robustus n. sp.
(Peterson 1919)
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type is from Myton Pocket: see Peterson 1919 (1 measurement) | ||||||||||
= Tapocyon robustus
Peterson 1919
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Alroy 2002 | |||||||||
Procynodictis vulpiceps
Wortman and Matthew 1899
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Dawson 1980 | |||||||||
Uinta C, confirmed as Myton Pocket by Prothero 1996a; includes type and referred specimen of "Miacis gracilis" of Clark 1939 from "7 miles east and south of Myton": see also Wang and Tedford 1994 | ||||||||||
Mammalia
- Carnivora
- Miacidae
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Prodaphaenus scotti
Wortman and Matthew 1899
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at Myton Pocket: Prothero 1996a | ||||||||||
= Miocyon scotti
Wortman and Matthew 1899
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Alroy 2002 | |||||||||
Mammalia
- Acreodi
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Pleurocyon magnus n. gen., n. sp.
Peterson 1919
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Peterson 1919 | |||||||||
recombined as Simidectes magnus | ||||||||||
6 mi SE of Myton, near base of Myton Mbr. horizon C, and also possibly from horizon B; "Pleurocyon magnum" | ||||||||||
Mammalia
- Acreodi
- Mesonychidae
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Harpagolestes leotensis
Peterson 1931
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Prothero 1996 | |||||||||
Myton Pocket; presumably "Mesonyx uintensis" of Kay 1957; may include "Uinta C" record of West 1981 | ||||||||||
Mammalia
- Micropternodontidae
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Micropternodus sp.
Matthew 1903
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Prothero 1996 | |||||||||
Mammalia
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Talpavus sp.
Marsh 1872
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(1 measurement) | ||||||||||
= Talpavus duplus n. sp.
Krishtalka 1976
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Krishtalka 1976 | |||||||||
replaces ID of McKenna et al. 1962: Myton Pocket; probably includes "Nyctitherium | ||||||||||
Mammalia
- Rodentia
- Cylindrodontidae
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Pareumys milleri n. sp.
Peterson 1919
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Peterson 1919 | |||||||||
Myton Pocket; said by Prothero 1996a to be from White River Pocket | ||||||||||
Mammalia
- Rodentia
- Ischyromyidae
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Paramys compressidens n. sp.
Peterson 1919
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from Myton Pocket: see Peterson 1919 (1 measurement) | ||||||||||
Prosciurus robustus n. sp.
Peterson 1919
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Peterson 1919 | |||||||||
recombined as Mytonomys robustus | ||||||||||
from "Horizon C... six miles east of Myton" | ||||||||||
Ischyrotomus eugenei
Burke 1935
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referred specimen is from Myton Pocket, but type is from Myton Mbr. at "Head of west fork of Antelope Draw, beneath the rim of Deadman Bench, Uinta County": Burke 1935a; I cannot locate Antelope Draw, but Kay 1934 shows Deadman Bench as running most of the way between Ouray and Kennedy's Hole north of the White River, so this may be in Uinta C in the Wagonhound Canyon section | ||||||||||
= Pseudotomus eugenei
Burke 1935
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Alroy 2002 | |||||||||
Paramys medius n. sp.
Peterson 1919
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from Myton Pocket according to Peterson 1919, but from "three miles west of Chipeta Wall" according to Wood 1962 (this locality is not discussed by any other author) | ||||||||||
= Thisbemys medius
Peterson 1919
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Alroy 2002 | |||||||||
Mammalia
- Rodentia
- Eutypomyidae
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Janimus rhinophilus n. sp.
Dawson 1966
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Dawson 1966 | |||||||||
Myton Pocket | ||||||||||
Mammalia
- Lagomorpha
- Leporidae
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Mytonolagus petersoni n. sp.
Burke 1934
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see Burke 1934b (8 measurements) | ||||||||||
Mammalia
- Primates
- Omomyidae
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Mytonius hopsoni n. sp.
Robinson 1968
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= Ourayia hopsoni
Robinson 1968
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Robinson 1968 | |||||||||
Myton Pocket DUPLICATE REF 2923 or 2924 or 2925 | ||||||||||
Ourayia uintensis
(Osborn 1895)
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Krishtalka 1978 | |||||||||
Myton Pocket | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Utah | County: | Duchesne |
Coordinates: | 40.2° North, 109.9° West (view map) | ||||
Paleocoordinates: | 43.0° North, 98.9° West | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Eocene |
10 m.y. bin: | Cenozoic 2-3 | ||
*Period: | Tertiary | ||
Key time interval: | Uintan | ||
Age range of interval: | 46.20000 - 39.70000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Uinta | Member: | lower Myton |
Local section: | Uinta | Local bed: | 5 |
Local order: | bottom to top |
Lithology and environment
Primary lithology: | not reported |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | general faunal/floral analysis |
Taxonomic list comments:according to Burke 1934b, Myton Pocket was not discovered until 1912, so earlier Uinta C records cannot belong to it Kay's list is for all of Uinta C; I have removed records not tied to Myton Pocket by revised list of Prothero 1996a or other sources Black and Sutton also list "Leptotomus grangeri" Myton Pocket is 7 mi. E of Myton, Duchesne Co. (often said to be 6 mi E or SE of Myton) and is close to the base of Uinta C Protylopus Quarry is within Myton Pocket "Uintatherium sp." of Kay is probably erroneous, see Wheeler 1961 "Hyrachyus sp." could be Triplopus sensu Radinsky 1967a and no specimens are discussed in the literature "Mesamynodon medius" of Kay is of unclear status because no material of this species or its sometime synonym "Hyracodon primus" has ever been attributed to the Uinta Fm. sensu stricto "Hylomeryx simplicidens" of Kay appears to be a nomen nudum "Achaenodon sp." is listed by Kay, but no other publication suggests that this genus is present above Uinta B "Simimeryx minutus" is listed by Kay, but no specimen other than the type from Red Narrows is discussed in the literature |
Metadata
Also known as: | Protylopus Quarry | ||
Database number: | 16607 | ||
Authorizer: | J. Alroy | Enterer: | J. Alroy |
Modifier: | J. Alroy | Research group: | vertebrate |
Created: | 1997-04-12 00:00:00 | Last modified: | 2010-11-23 21:35:28 |
Access level: | the public | Released: | 1997-04-12 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
2052. | J. L. Kay. 1957. The Eocene vertebrates of the Uinta Basin, Utah. Intermountain Association of Petroleum Geologists, Guidebook, 8th Annual Field Conference 110-114 [J. Alroy/J. Alroy] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
1271 | M. C. Coombs. 1971. Status of Simidectes (Insectivora, Pantolestoidea) of the late Eocene of North America. American Museum Novitates 2455 [J. Alroy/J. Alroy/J. Ju] | |
1339 | M. R. Dawson. 1966. Additional late Eocene rodents (Mammalia) from the Uinta basin, Utah. Annals of Carnegie Museum 38(4):97-116 [J. Alroy/J. Alroy/M. Uhen] | |
1344 | M. R. Dawson. 1980. Paleontology and Geology of the Badwater Creek Area, Central Wyoming. Part 20. the Late Eocene Creodonta and Carnivora. Annals of Carnegie Museum 49(4):79-91 [J. Alroy/J. Alroy/J. Marcot] | |
1608 | C. L. Gazin. 1955. A review of the Upper Eocene Artiodactyla of North America. Smithsonian Miscellaneous Collections 128(8):1-96 [J. Alroy/J. Alroy/J. Marcot] | |
1614 | C. L. Gazin. 1958. A new dichobunid artiodactyl from the Unita Eocene. Breviora 96:1-6 [J. Alroy/J. Alroy/J. Marcot] | |
23583 | C. W. Gilmore. 1946. A new crocodilian from the Eocene of Utah. Journal of Paleontology 20(1):62-67 [J. Alroy/J. Alroy] | |
1927 | L. T. Holbrook and S. G. Lucas. 1997. A New Genus of Rhinocerotoid from the Eocene of Utah and the Status of North American "Forstercooperia". Journal of Vertebrate Paleontology 17(2):384-396 [J. Alroy/J. Alroy/J. Ju] | |
2170 | L. Krishtalka. 1976. Early Tertiary Adapisoricidae and Erinaceidae (Mammalia, Insectivora) of North America. Bulletin of Carnegie Museum of Natural History 1 [J. Alroy/J. Alroy/J. Ju] | |
2172 | L. Krishtalka. 1978. Paleontology and geology of the Badwater Creek area, central Wyoming Part 15. Review of the late Eocene primates from Wyoming and Utah, and the Plesitarsiiformes. Annals of Carnegie Museum 47(15):335-360 [J. Alroy/J. Alroy/M. Uhen] | |
2761 | O. A. Peterson. 1919. Report Upon the Material Discovered in the Upper Eocene of the Uinta Basin by Earl Douglas in the Years 1908-1909, and by O. A. Peterson in 1912. Annals of Carnegie Museum 12(2):40-168 [J. Alroy/J. Alroy/J. Marcot] | |
2802 | 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] | |
2923 | P. Robinson. 1968. The paleontology and geology of the Badwater Creek area, central Wyoming. Annals of Carnegie Museum 39(19):307-326 [J. Alroy/J. Alroy/M. Uhen] | |
25085 | A. Wetmore. 1938. A fossil duck from the Eocene of Utah. Journal of Paleontology 12(3):280-283 [J. Alroy/J. Alroy] | |
3731 | A. E. Wood. 1962. The Early Tertiary Rodents of the Family Paramyidae. Transactions of the American Philosophical Society 52(1):3-261 [J. Alroy/J. Alroy/J. Marcot] |