Ferris Formation (UW locality V-91004)
Basic information
Sample name: Ferris Formation (UW locality V-91004)

Sample aka: Windy Mudstone

Reference: J. J. Eberle and J. A. Lillegraven. 1998. A new important record of earliest Cenozoic mammalian history: geologic setting, Multituberculata, and Peradectia. Rocky Mountain Geology 33(1):3-47 [ER 4135]
Geography
Country: United States

State: Wyoming


County: Carbon


Coordinate: 41.95° N, -106.88° W
Coordinate basis: estimated from map

Formation: Ferris

Time interval: Early Palaeocene

Zone: Puercan

Section: Ferris

Unit number: 1

Unit order: below to above

Geography comments: near the center of sec. 21, T. 23 N., R. 84 W.
said to be in the uppermost Pu2 zone

•
Environment
Lithology: sandstone

Taphonomic context: overbank deposit

Habitat comments: shown in Fig. 2 as coming from a sandstone bed
"a crevasse splay deposit"

Methods
Life forms: ungulates,other small mammals

Sampling methods: screenwash

Sample size: 38 specimens

Years: 1991 - 1994

Museum: University of Wyoming

Sampling comments: collected by Eberle in 1992 - 1994 after presumably being discovered in 1991
"screen-washed"
counts are based on two companion papers by Eberle and Lillegraven (1998), ER refs 4135 and 4136

Metadata
Sample number: 4586

Contributor: John Alroy

Enterer: John Alroy

Modifier no: John Alroy

Created: 2024-12-09 04:05:40

Modified: 2024-12-09 04:13:44

Abundance distribution
11 species
5 singletons
total count 38
geometric series index: 25.2
Fisher's α: 5.192
geometric series k: 0.8232
Hurlbert's PIE: 0.8578
Shannon's H: 2.1222
Good's u: 0.8684
Each square represents a species. Square sizes are proportional to counts.
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Register
†Mesodma formosa4
†Mesodma ambigua6
†Mesodma hensleighi1
Mesodma sp.1
?
Peradectes cf. pusillus = †Thylacodon cf. pusillus6
Proteutheria indet.1
†Protungulatum donnae7
†Protungulatum sloani1
†Oxyprimus galadrielae1
Oxyprimus sp.7
compared to Oxyprimus erikseni
Mimatuta sp.3