Canyon Ferry Reservoir 24BW18 (Eocene of the United States)

Where: Broadwater County, Montana (46.1° N, 111.3° W: paleocoordinates 47.9° N, 102.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Chadronian (37.2 - 33.9 Ma)

Environment/lithology: terrestrial

Primary reference: T. E. White. 1954. Preliminary Analysis of the Fossil Vertebrates of the Canyon Ferry Reservoir Area. Proceedings of the United States National Museum 103(3326):395-438 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 16925: authorized by John Alroy, entered by John Alroy on 30.04.1994

Creative Commons license: CC BY (attribution)

Taxonomic list

• NOT in measured section
even split of specimens possibly from 24LC16 yields estimated NISP of 22
"Leptomeryx evansi" is from the "upper levels" at this loc.; NISP 2
 Rodentia - Cricetidae
Eumys elegans1 Leidy 1856 mouse
 Lagomorpha - Leporidae
Palaeolagus temnodon Douglass 1902 rabbit
- 3
 Perissodactyla - Hyracodontidae
Hyracodontidae indet. Cope 1879 odd-toed ungulate
 Perissodactyla - Rhinocerotidae
Subhyracodon cf. mitis1 Cope 1875 rhinoceros
 Perissodactyla - Equidae
Mesohippus bairdi1 Leidy 1850 anchitheriine horse
 Tribosphenida - Proscalopidae
Cryptoryctes kayi3 Reed 1954 placental
 Tribosphenida - Apternodontidae
Apternodus mediaevus Matthew 1903 placental
 Carnivora - Canidae
Hesperocyon gregarius1 Cope 1873 canid
 Ungulata - Camelidae
 Ungulata - Leptomerycidae
"Pronodens transmontanus" = Leptomeryx esulcatus2
"Pronodens transmontanus" = Leptomeryx esulcatus2 Cope 1889 ruminant