Fence Pocket: 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
Leptictis thomsoni (Matthew 1903)
    = informal Novacek leptictid thomsoni
Alroy 2002
Mammalia - Lagomorpha - Leporidae
Megalagus brachyodon (Matthew 1903)
Palaeolagus temnodon Douglass 1902
Chadrolagus emryi Gawne 1978
Tabrum et al. 2001
Mammalia - Rodentia - Ischyromyidae
Ischyromys sp. Leidy 1856
said to be new
Ischyromys veterior Matthew 1903
Mammalia - Rodentia - Cylindrodontidae
Cylindrodon fontis Douglass 1902
Mammalia - Rodentia - Eomyidae
Paradjidaumo trilophus (Cope 1873)
recombined as Adjidaumo trilophus
Namatomys lloydi Black 1965
Mammalia - Rodentia - Eutypomyidae
Eutypomys parvus Lambe 1908
mentioned in text but apparently accidentally shown in table to be from the Main Pocket
Mammalia - Oligoryctidae
Oligoryctes altitalonidus (Clark 1936)
Mammalia - Micropternodontidae
Micropternodus borealis Matthew 1903
Mammalia - Apternodontidae
Apternodus mediaevus Matthew 1903
Mammalia - Geolabididae
Centetodon kuenzii Lillegraven et al. 1981
Mammalia - Soricidae
Domnina thompsoni Simpson 1941
Mammalia - Carnivora - Canidae
Hesperocyon gregarius (Cope 1873)
Mammalia - Leptochoeridae
Stibarus montanus Matthew 1903
Tabrum et al. 2001
Mammalia - Leptomerycidae
? Hendryomeryx sp. Black 1978
Tabrum et al. 2001
additional "Leptomeryx," said to be "new species I"
    = Pipestoneia douglassi Tabrum and Métais 2007
Tabrum and Métais 2007
"Leptomeryx" speciosus Lambe 1908
"Leptomeryx" mammifer Cope 1885
Mammalia - Protoceratidae
Leptotragulus profectus Matthew 1903
    = Trigenicus profectus Matthew 1903
Alroy 2002
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 - Perissodactyla - Equidae
Miohippus grandis (Clark and Beerbower 1967)
Mammalia
Copedelphys titanelix (Matthew 1903)
Herpetotherium valens (Lambe 1908)
Herpetotherium fugax (Cope 1873)
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:Tertiary
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
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Taxonomic list comments:0.5 mi SE of Main Pocket; apparently same horizon
"? Hyracodon sp." is omitted by Tabrum et al. 2001
Metadata
Also known as:MV 6103
Database number:16959
Authorizer:J. Alroy, J. Marcot Enterer:J. Alroy, J. Marcot
Modifier:J. Alroy Research group:vertebrate
Created:2002-05-15 00:00:00 Last modified:2006-09-13 00:27:33
Access level:the public Released:2002-05-15 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]
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]