Green Locality
Basic information
Sample name: Green Locality

Sample aka: CBB-1

Reference: R. M. West and M. R. Dawson. 1973. Fossil mammals from the upper part of the Cathedral Bluffs Tongue of the Wasatch Formation ((early Bridgerian), northern Green River Basin, Wyoming. University of Wyoming Contributions to Geology 12(1):33-41 [ER 4131]
Geography
Country: United States

State: Wyoming

Coordinate: 42.56° N, -109.52° W
Latlng basis: stated in text

Scale: outcrop

Formation: Wasatch

Time interval: Early Eocene

Zone: Bridgerian

Ma: 50.1

Age basis: AEO

Geography comments: "in SW 1/4 sec. 17, T. 30 N., R. 106 W." (West 1973, pp. 29 and 62)
a single outcrop based on West (1973, Fig. 12)
from the "upper Cathedral Bluffs Tongue" of the Wasatch Formation
interpreted as early Bridgerian

•
Environment
Lithology: conglomerate

Habitat comments: "a gray-green intraformational sandy mudstone conglomerate" (West 1973, Fig. 12)

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

Excluded forms: lizards, snakes

Sampling methods: screenwash

Sample size: 301 specimens

Years: 1967, 1970 - 1972

Museum: Field Museum of Natural History

Net or trap nights: 0

Basal area status: not applicable

Sampling comments: "the initial collection... was made in 1967. Several tons of matrix were bag- and screen-washed in 1970 and 1971, and the locality was thoroughly prospected by the 1972 field conference participants"
"Approximately 6, 200 lbs. of sediment washed" (West 1973, p. 62), but this pre-dates collections reported by West and Dawson (1973)
"amphibians are not yet known... although a large number of snakes and lizards have been recovered"
an earlier faunal list with a much smaller sample size was reported by West (1973)
Pseudotomus robustus of Black and Sutton (1984) presumably replaces one of the rodent species

Metadata
Sample no: 4575

Contributor no: John Alroy

Enterer: John Alroy

Modifier no: John Alroy

Created: 2024-12-07 23:24:24

Modified: 2024-12-11 10:22:32

Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
38 species
10 singletons
total count 301
geometric series index: 66.6
Fisher's α: 11.51
geometric series k: 0.8926
Hurlbert's PIE: 0.9023
Shannon's H: 2.8774
Good's u: 0.9669
Register
Peratherium knighti = †Herpetotherium knighti 6
†Apatemys bellus 1
†Nyctitherium serotinum 4
†Scenopagus priscus 8
†Phenacolemur cf. mcgrewi 1
†Omomys carteri 11
†Anaptomorphus aemulus 2
†Microsyops cf. elegans 25
Gunnell (1989): "Microsyops sp."
Niptomomys sp. 1
cf.
Miacidae indet.5
†Hyopsodus minusculus 49
†Hyrachyus modestus 3
Helaletidae indet.1
"Helaletes sp.": could be Desmatotherium
†Orohippus cf. pumilus (horse)11
†Antiacodon pygmaeus 5
†Pseudotomus cf. robustus 1
Ischyrotomus sp. 1
?
†Paramys delicatior 11
†Paramys delicatus 4
Paramys wyomingensis = †Acritoparamys wyomingensis 9
includes "cf. Reithroparamys matthewi" (a synonym)
†Thisbemys perditus 8
Korth (1984): "Paramys near P. excavatus"
Paramyidae indet.5
"Paramys" group
†Reithroparamys delicatissimus 18
†Reithroparamys huerfanensis 1
Reithroparamys sp. 1
Reithroparamys sp. small 3
Paramyidae indet.2
"Reithroparamys or Paramys sp."
†Microparamys minutus 1
Microparamys sp. 1
said to be new
†Pauromys schaubi 2
Tillomys sp. 3
small
Tillomys sp. 2
large
†Sciuravus nitidus 67
†Sciuravus bridgeri 4
Sciuravidae indet.8
said to be new
†Knightomys depressus 2
Korth (1984): "Knightomys cf. senior"; includes "Microparamys lysitensis" (a synonym)
†Knightomys huerfanensis 3
Korth (1984): "Knightomys sp."
†Mysops aff. fraternus 11
"near" this species