Where: Goshen County, Wyoming (42.0° N, 104.2° W: paleocoordinates 42.9° N, 99.2° W)
• coordinate based on political unit
When: Harrisonian (24.8 - 18.5 Ma)
• said to be late Arikareean
•rocks are roughly Upper Harrison equivalent and significantly older than those of the Spoon Butte Beds (see)
• member-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Primary reference: R. M. Hunt, Jr. 1985. Geology and paleontology of the Patrick Buttes, Wyoming-Nebraska. National Geographic Society Research Reports 20:399-416 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 17796: authorized by John Alroy, entered by John Alroy on 26.03.1995
Creative Commons license: CC BY (attribution)
Taxonomic list
•Hunt seems to think the locality is new, but F:AM records indicate the he is mistaken
•possibly relevant: Archaeohippus sp. Dingus 1990: F:AM specimen from ? Marsland Fm. "near Spoon Buttes"; this could be from the Spoon Butte Beds "Merychyus siouxensis" Loomis 1924: type, from "Lower harrison beds, ten miles west of Agate"; this is close to but perhaps 4 mi E of Spoon Buttes
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Equidae indet. Gray 1821 horse | |
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Menoceras sp. Troxell 1921 rhinoceros
Diceratherium sp. Marsh 1875 rhinoceros | |
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Stenomylus gracilis1 Peterson 1907 camel "Marsland" equivalent at "Spoon Buttes"; "Camelidae indet."
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Mustelidae indet. Fischer 1817 mustelid carnivore | |
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Adilophontes brachykolos3 Hunt 2002 bear-dog "southwest of Spoon Butte" in rocks of "latest Arikareean" age
Daphoenodon falkenbachi3 Hunt 2002 bear-dog "west of Spoon Butte" in rocks of "latest Arikareean" age
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Desmocyon thomsoni5 Matthew 1907 bone-crushing dog "Upper Harrison beds... Spoon Buttes" and "southwest of Spoon Buttes"; "Canidae indet."
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Rodentia indet. Bowdich 1821 rodent | |