Little Pipestone Creek: Chadronian, Montana

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Leptictis acutidens (Douglass 1902)
    = informal Novacek leptictid acutidens
Alroy 2002
Reptilia - Testudines
Chelonia indet. (Latreille 1800)
synonym of Testudines
Mammalia - Creodonta - Hyaenodontidae
Hyaenodon minutus n. sp. Douglass 1902
Douglass 1902
synonym of Hyaenodon crucians
Mammalia - Carnivora - Ursidae
Parictis montanus Clark and Guensburg 1972
Clark and Guensburg 1972
omitted by Tabrum et al. 1996 and indicated to be from Pipestone Springs general area but not from a specific locality, but this is possibly in error
Mammalia - Carnivora - Amphicyonidae
Brachyrhynchocyon dodgei (Scott 1898)
Mammalia - Carnivora - Canidae
Hesperocyon gregarius (Cope 1873)
confirmed by Wang 1994
Mammalia - Perissodactyla - Equidae
Mesohippus westoni (Cope 1889)
    = Mesohippus montanensis Osborn 1904
Tabrum et al. 2001
synonym of Mesohippus westoni
Miohippus grandis (Clark and Beerbower 1967)
Mammalia - Perissodactyla - Brontotheriidae
Brontotheriidae indet. (Marsh 1873)
Mammalia - Perissodactyla - Rhinocerotidae
Rhinocerotidae indet. Gray 1821
Mammalia - Leptochoeridae
Stibarus montanus Matthew 1903
Mammalia - Merycoidodontidae
Merycoidodontidae indet. Cook 1912
"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 Douglass 1902
Mammalia - Camelidae
Poebrotherium sp. Leidy 1847
Mammalia - Protoceratidae
Leptotragulus profectus Matthew 1903
recombined as Trigenicus profectus
Mammalia - Agriochoeridae
? Agriochoerus maximus n. sp. Douglass 1902
Douglass 1902
of Douglass
Mammalia - Leptomerycidae
Hendryomeryx sp. Black 1978
said to be new
    = Pipestoneia douglassi Tabrum and Métais 2007
Tabrum and Métais 2007
Leptomeryx sp. Leidy 1853
two forms
Leptomeryx speciosus Lambe 1908
Tabrum et al. 2001
Leptomeryx mammifer Cope 1885
Mammalia - Geolabididae
Centetodon kuenzii Lillegraven et al. 1981
Mammalia - Proscalopidae
? Oligoscalops sp. Reed 1961
said to be new
Mammalia - Soricidae
Domnina thompsoni Simpson 1941
Mammalia - Apternodontidae
Apternodus baladontus Asher et al. 2002
Asher et al. 2002
MV 6001
Apternodus mediaevus Matthew 1903
MV 5905 and MV 8603: Asher et al. 2002
Mammalia - Oligoryctidae
Oligoryctes cameronensis Hough 1956
Oligoryctes altitalonidus (Clark 1936)
Mammalia - Micropternodontidae
Micropternodus borealis Matthew 1903
Cryptoryctes kayi Reed 1954
Mammalia - Lagomorpha - Leporidae
Palaeolagus triplex Cope 1873
Douglass 1902
    = Megalagus brachyodon Matthew 1903
Tabrum et al. 1996
Palaeolagus temnodon n. sp. Douglass 1902
Douglass 1902
Chadrolagus emryi Gawne 1978
Mammalia - Rodentia - Cylindrodontidae
Cylindrodon fontis Douglass 1902
Mammalia - Rodentia - Pipestoneomyidae
Pipestoneomys bisulcatus Donohoe 1956
Mammalia - Rodentia - Aplodontidae
Prosciurus vetustus (Matthew 1903)
original and current combination Sciurus (Prosciurus) vetustus
Mammalia - Rodentia - Eomyidae
Aulolithomys bounites Black 1965
Paradjidaumo trilophus (Cope 1873)
recombined as Adjidaumo trilophus
Adjidaumo minimus (Matthew 1903)
    = Adjidaumo cf. intermedius Korth 1989
Tabrum et al. 2001
Mammalia - Rodentia - Ischyromyidae
Ischyromys typus Leidy 1856
Douglass 1902
said to be new
    = Ischyromys sp. Leidy 1856
Tabrum et al. 1996
according to Tabrum et al. 1996
Ischyromys veterior Matthew 1903
Mammalia
Peratherium titanelix Matthew 1903
recombined as Copedelphys titanelix
Peratherium fugax (Cope 1873)
    = Herpetotherium fugax Cope 1873
Alroy 2002
Peratherium donohoei
    = Herpetotherium valens Lambe 1908
Alroy 2002
see common names

Geography
Country:United States State/province:Montana County:Jefferson
Coordinates: 46.0° North, 112.0° West (view map)
Paleocoordinates:47.8° North, 103.1° West
Basis of coordinate:based on political unit
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Eocene
Stage:Priabonian 10 m.y. bin:Cenozoic 3
*Period:Early/Lower Tertiary *Epoch:Late/Upper Eocene
*Local age/stage:Chadronian
Key time interval:Chadronian
Age range of interval:37.00000 - 33.90000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Renova Member:Climbing Arrow
Local section:JeffB Local bed:1
Local order:bottom to top
Stratigraphy comments: WARNING: Cactus Junction is said by Asher et al. 2002 to be medial Chadronian, whereas the other two MV localities are late Chadronian
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Metadata
Also known as:MV 5905 (Honeymoon Quarry); MV 6001 (Cactus Junction); MV 8603 (Little Pipestone Creek North Pocket)
Database number:16988
Authorizer:J. Alroy, J. Marcot Enterer:J. Alroy, J. Marcot, J. Wertheim
Modifier:J. Alroy Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2002-11-24 12:37:59
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
3359. 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]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
7521 R. J. Asher, M. C. McKenna, R. J. Emry, A. R. Tabrum, and D. G. Kron. 2002. Morphology and relationships of Apternodus and other extinct, zalambdodont, placental mammals. Bulletin of the American Museum of Natural History 273:1-117 [J. Alroy/J. Alroy/J. Alroy]
1238 J. Clark and T. E. Guensburg. 1972. Arctoid genetic characters as related to the genus Parictis. Fieldiana 26(1):1-71 [J. Alroy/J. Alroy/J. Marcot]
13815% 51860E. Douglass. 1902. Fossil Mammalia of the White River beds of Montana. Transactions of the American Philosophical Society 20:237-279 [J. Alroy/J. Alroy/W. Clyde]
57250 A. R. Tabrum and G. Métais. 2007. Pipestoneia douglassi, A New Genus and Species of Selenodont Artiodactyl from the Pipestone Springs Area, Jefferson County, Montana. Bulletin of Carnegie Museum of Natural History 39:83-96 [J. Marcot/J. Marcot/J. Marcot]
4220 A. R. Tabrum, R. Nichols, and A. D. Barnosky. 2001. Tertiary paleontology of southwest Montana and adjacent Idaho. Museum of the Rockies Occasional Paper 3:93-112 [J. Alroy/J. Alroy/J. Alroy]