Bear Creek
Basic information
Sample name: Bear Creek

Sample aka: Eagle Mine

Reference: G. G. Simpson. 1928. A new mammalian fauna from the Fort U-nion of southern Montana. American Museum Novitates 297:1-15 [ER 4105]
Geography
Country: United States

State: Montana

County: Carbon

Coordinate: 45.14° N, -109.18° W
Latlng basis: estimated from map

Scale: quarry

Formation: Fort Union

Time interval: Late Palaeocene

Zone: Clarkforkian

Geography comments: from "the Eagle Mine, about one mile south of Bear Creek in the Red Lodge Coal Field... just above coal vein No. 3 of the local field... about 1500 feet above the base of the Fort Union" (coordinate projected from Bearcreek)
early Clarkforkian according to Rose (1981)

•
Environment
Lithology: claystone

Habitat comments: from a hard "argillaceous" layer "on the roof of" the mine (Simpson) or "a thin carbonaceous clay" (Rose 1981)

Methods
Life forms: carnivores, primates, rodents, ungulates, other large mammals, other small mammals

Excluded forms: turtles, other reptiles, fishes, clams

Sampling methods: quarry

Sample size: 178 specimens

Years: 1927

Museum: AMNH, Carnegie Museum of Natural History, Princeton University

Net or trap nights: 0

Basal area status: not applicable

Sampling comments: the metadata are from Simpson, but the faunal list is from Rose (1981) and there was an earlier review by Russell (1967)
discovered by "Dr. J. C. F. Siegfriedt of Bear Creek" on "Nov. 5, 1927" and collected by Siegfriedt and Barnum Brown from "September 10th to 16th, 1927", who "shipped to New York a quantity of matrix from which an even larger number of specimens has since been recovered"
"Some specimens have been obtained from the same horizon in the nearby Foster Mine, but all taxa from there are also known from the Eagle Mine" (Rose 1981)
"In the same layer occur many remains of freshwater molluscs, fishes, turtles, champsosaurs, and crocodiles"

Metadata
Sample no: 4530

Contributor no: John Alroy

Enterer: John Alroy

Modifier no: John Alroy

Created: 2024-12-01 03:48:25

Modified: 2024-12-03 08:30:42

Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
20 species
2 singletons
total count 178
geometric series index: 28.8
Fisher's α: 5.782
geometric series k: 0.8069
Hurlbert's PIE: 0.8478
Shannon's H: 2.3868
Good's u: 0.989
Register
Peradectes sp. 1
?
Palaeosinopa sp. 6
cf.
†Protentomodon ursirivalis 6
type
Aphronorus sp. 2
?
†Labidolemur kayi 8
type
†Leipsanolestes siegfriedti 22
†Planetetherium mirabile 59
type
Microsyopidae indet.2
?
Plesiadapis sp. 4
Korth (1984): "Plesiadapis dubius"
†Chiromyoides gingerichi 1
Secord (2008): "Chiromyoides potior"
†Carpolestes nigridens 15
type: includes "Carpolestes aquilae" and "Litotherium complicatum" of Simpson (1929)
Dillerlemur pagei = †Phenacolemur pagei 6
†Thryptacodon pseudarctos 10
type
†Phenacodus intermedius 2
Thewissen (1990): "Phenacodus primaevus"
†Haplomylus palustris 5
Gingerich (1995): type; "Haplomylus simpsoni"
†Phenacodaptes cf. sabulosus 4
Dissacus sp. 4
†Ectoganus lobdelli 4
type
Viverravus sp. 2
?
†Acritoparamys atavus 15
type