Also known as UW V-60014, V-60016; Keefer Hill; Twin Buttes; Jenkins Mountain; New Anthill
Where: Fremont County, Wyoming (43.5° N, 109.2° W: paleocoordinates 49.4° N, 89.2° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Shotgun Member (Fort Union Formation), Tiffanian (61.7 - 56.8 Ma)
Environment/lithology: terrestrial
Primary reference: G. F. Gunnell. 1989. Evolutionary History of Microsyopoidea (Mammalia, ?Primates) and the Relationship Between Plesiadapiformes and Primates. University of Michigan Papers on Paleontology 27:1-157 [J. Alroy/J. Alroy/P. Mannion]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 15067: authorized by John Alroy, entered by John Alroy on 18.02.1993
Creative Commons license: CC BY (attribution)
Taxonomic list
•apart from the plesiadapiforms, Gunnell's list is mostly repeated from ancient sources without modification
•Gunnell lists Eudaemonema cuspidata from "Shotgun fauna, Keefer Hill" but omits this from his faunal list
unclassified | |
Mammalia | |
cf. Litomylus sp. Simpson 1935 elephant shrew | |
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Promioclaenus sp. Trouessart 1904 condylarth | |
Elpidophorus cf. minor Simpson 1937 colugo | |
Ignacius fremontensis Gazin 1971 primate
Ignacius cf. frugivorus Matthew and Granger 1921 primate
Paromomys cf. depressidens Gidley 1923 primate | |
Palenochtha cf. minor Gidley 1923 primate
Plesiolestes cf. problematicus Jepsen 1930 primate
Torrejonia sirokyi Szalay 1973 primate | |
Palaechthon cf. alticuspis Gidley 1923 primate
Palaechthon woodi Gazin 1971 primate | |
Elphidotarsius shotgunensis Gazin 1971 primate
Carpodaptes cf. hazelae Simpson 1936 primate | |
Plesiadapis sp. Gervais 1877 primate resembles P. praecursor; assigned to that species by Gingerich 1976 and Krause and Gingerich 1983
Nannodectes intermedius n. sp. Gazin 1971 primate | |
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Pentacodon sp. Scott 1892 placental | |
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Arctocyon cf. ferox1, Colpoclaenus keeferi n. sp., "Mimotricentes subtrigonus" = Tricentes subtrigonus1
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Ectocion sp. Cope 1882 condylarth ominously not mentioned by Thewissen 1990, but Keefer and Troyer 1964 list "Gidleyina sp."
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Anisonchus cf. sectorius Cope 1881 condylarth | |
Gelastops sp. Simpson 1935 eutherian | |
Pantolambda cf. cavirictum Cope 1883 pantodont | |
Aphronorus orieli3 Gazin 1969 eutherian Gunnell lists "cf. Aphronorus sp." and once again is merely repeating an old i.d.
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cf. Peradectes sp. Matthew and Granger 1921 marsupial | |
Catopsalis calgariensis5 Russell 1926 multituberculate Gunnell lists C. cf. fissidens; record of C. cf. fissidens in Keefer 1961 explicitly referred to C. calgariensis by Middleton
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"Anconodon lewisi n. sp." = Anconodon cochranensis7
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Ectypodus aphronorus7, Parectypodus sylviae7, Parectypodus sinclairi7, Mimetodon cf. silberlingi, Mesodma pygmaea7, Neoplagiaulax nelsoni7
Mimetodon cf. silberlingi Simpson 1935 multituberculate |