Also known as Pipestone Main; MV 5810, 5811, 5901, 5902
Where: Jefferson County, Montana (45.9° N, 112.3° W: paleocoordinates 47.7° N, 103.4° W)
• coordinate stated in text
When: Climbing Arrow Member (Renova Formation), Chadronian (37.2 - 33.9 Ma)
Environment/lithology: terrestrial; sandy claystone
Size class: macrofossils
Collection methods: surface (float)
Primary reference: A. R. Tabrum, D. R. Prothero, and D. Garcia. 1996. Magnetostratigraphy and biostratigraphy of the Eocene-Oligocene transition, southwestern Montana. In D. R. Prothero and R. J. Emry (eds.), The Terrestrial Eocene-Oligocene Transition in North America 278-311 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 17010: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jill Wertheim, Jonathan Marcot, Terri Cleary and Clint Boyd
Creative Commons license: CC BY (attribution)
Taxonomic list
•335 rodent specimens just in the CM collection: Black 1965
•following species are from the general area, exact locality unknown: Patriomanis americanus; Hyaenodon crucians -type of "H. minutus"; Hyaenodon microdon type; Hyaenodon montanus - type, actually from Toston contra Mellett 1977; Mesohippus "portentus"; Oreonetes anceps - "?Limnenetes sp." of Matthew 1903, probably not even from Pipestone area; Leptochoerus sp.
•following species are listed by Tabrum and Fields 1980 but not by Tabrum et al.: Agriochoerus maximus = A. sp.?; Paradjidaumo minor = P. trilophus; Korth 1980 "? Cupressimus sp."; Merycoidodon "lewisi"; Didelphidectes "pumilis" = "pumilus" type is omitted by Tabrum et al. 2001 from the Main Pocket list and presumably has poor provenance
•"Centetodon magnus" is omitted by Tabrum et al. 2001
•"Eutypomys parvus" apparently not present, symbol in table seems to refer to Little Pocket (see) and taxon is omitted by Tabrum et al. 2001
•"Zemiodontomys burkei" type is omitted by Tabrum et al. 2001, presumably has poor provenance
•"Montanamus bjorki" type (see Ostrander 1983b) is omitted by Tabrum et al. 2001, presumably has poor provenance
•"Pipestoneomys bisulcatus" type is omitted by Tabrum et al. 2001, presumably has poor provenance
"Daphoenictis sp." is omitted by Tabrum et al. 2001, presumably has poor provenance
•"Parictis montanus" type, see Clark andGuensburg 1972; omitted by Tabrum et al. 2001, presumably has poor provenance
•"Dinictis sp." (agrees with Bryant 1996) is omitted by Tabrum et al. 2001, presumably has poor provenance
•"Leptochoerus sp." is omitted by Tabrum et al. 2001, presumably has poor provenance
•"Agriochoerus sp." is omitted by Tabrum et al. 2001, presumably has poor provenance
Reptilia | |
"Chelonia indet." = Testudines1
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Helodermoides tuberculatus n. gen. n. sp.2, Helodermoides tuberculatus8, cf. Helodermoides tuberculatus8
Helodermoides tuberculatus n. gen. n. sp.2 Douglass 1903 squamates CM 707 (holotype), partial skull and mandible; AMNH 1611, complete left frontal plus partial right frontal, posterior part of right dentary, three dermal scutes, one sacral vertebra, three anterior caudals
Helodermoides tuberculatus8 Douglass 1903 squamates AMNH Frick collection no. 8729, posterior part of right frontal
cf. Helodermoides tuberculatus8 Douglass 1903 squamates AMNH 2189, two body osteoderms; USNM 13805, basicranium
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Mammalia | |
Pseudocylindrodon neglectus n. sp., Cylindrodon fontis n. gen. n. sp.
Pseudocylindrodon neglectus n. sp. Burke 1935 rodent
Cylindrodon fontis n. gen. n. sp. Douglass 1902 rodent | |
"Protosciurus jeffersoni n. sp." = Douglassciurus jeffersoni
"Protosciurus jeffersoni n. sp." = Douglassciurus jeffersoni Douglass 1902 squirrel | |
Prosciurus vetustus n. sp.
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Ischyromys sp., Ischyromys veterior n. sp.
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Montanamus bjorki n. sp.4, Namatomys lloydi n. sp., Aulolithomys bounites n. sp., Adjidaumo minimus n. sp.
Aulolithomys bounites n. sp. Black 1965 rodent | |
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Palaeolagus temnodon n. sp. Douglass 1902 rabbit
Chadrolagus emryi Gawne 1978 rabbit | |
Domnina thompsoni n. sp.
Domnina thompsoni n. sp. Simpson 1941 shrew | |
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Oligoryctes altitalonidus Clark 1936 placental
Oligoryctes cameronensis Hough 1956 placental | |
Apternodus mediaevus n. sp.
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Centetodon kuenzii n. sp.
Centetodon kuenzii n. sp. Lillegraven et al. 1981 placental | |
"Hesperocyon paterculus n. sp." = Hesperocyon gregarius
"Hesperocyon paterculus n. sp." = Hesperocyon gregarius Cope 1873 canid | |
Mustelavus priscus Clark 1936 mustelid carnivore | |
Brachyrhynchocyon dodgei Scott 1898 bear-dog | |
"Palaeogale infelix n. sp." = Palaeogale sectoria
"Palaeogale infelix n. sp." = Palaeogale sectoria Gervais 1848 carnivoran "Palaeogale sectoria" replaces ID of Matthew 1903a see Baskin and Tedford 1996; listed as "P. lagophaga" for no stated reason by Tabrum et al. 2001
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Brontotheriidae indet. Marsh 1873 brontothere | |
Miohippus grandis Clark and Beerbower 1967 anchitheriine horse
"Mesohippus montanensis n. sp." = Mesohippus westoni10 Cope 1889 anchitheriine horse see Osborn 1904; "M. westoni"
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Colodon cf. kayi Hough 1955 tapir | |
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Rhinocerotidae indet. Gray 1821 rhinoceros | |
Stibarus montanus n. sp.
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Merycoidodontidae indet. Cook 1912 oreodont "Merycoidodon" originally described as "M. forsythae" by Schultz and Falkenbach 1968, which has been transferred to Miniochoerus; however, material has not been re-examined according to Stevens and Stevens 1996
Bathygenys alpha n. sp. Douglass 1902 oreodont | |
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"Leptotragulus profectus n. sp." = Trigenicus profectus
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Pipestoneia douglassi n. gen. n. sp.9 Tabrum and Métais 2007 ruminant includes "?Eotylopus new sp." of Tabrum and Fields 1980
Leptomeryx sp. Leidy 1853 ruminant three forms, including "I" and "M"; these are omitted by Tabrum et al. 2001
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Herpetotherium fugax Cope 1873 marsupial |