Deer Crash
Basic information
Sample name: Deer Crash

Sample aka: L6426; Makoshika State Park

Reference: J. P. Hunter, J. H. Hartman, and D. W. Krause. 1997. Mammals and mollusks across the Cretaceous-Tertiary boundary from Makoshika State Park and vicinity (Williston Basin), Montana. Contributions to Geology, University of Wyoming 32(1):61-114 [ER 4119]
Geography
Country: United States

State: Montana

County: Dawson

Coordinate: 47.06° N, -104.81° W
Latlng basis: stated in text

Formation: Fort Union

Time interval: Early Palaeocene

Zone: Puercan

Max Ma: 66.0

Min Ma: 65.7

Age basis: paleomag

Geography comments: "in sec. 18., T. 15 N., R. 55 E., in Makoshika State Park"
from the lower Ludlow Member of the Fort Union Formation and "stratigraphically equivalent to the horizons of Hiatt and Hiatt South localities"
"near the end of the time represented by Chron 29r" based on local paleomagnetic data and "middle Puercan (Pu2?)" (maximum age based on the ICS 2023 date for the K-Pg boundary minimum age based on Ogg 2020)

•
Environment
Lithology: sandstone

Taphonomic context: fluvial deposit

Habitat comments: "at the base of a major channel sandstone"

Methods
Life forms: ungulates

Excluded forms: clams

Years: 1994

Museum: Museum of the Rockies

Net or trap nights: 0

Basal area status: not applicable

Sampling comments: "discovered in 1994"
"the only site in the park area that has produced specimens of freshwater clams (Unionidae)"

Metadata
Sample no: 4555

Contributor no: John Alroy

Enterer: John Alroy

Created: 2024-12-04 09:48:48

Modified: 2024-12-04 09:48:48

Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
1 species
1 singleton
total count 1
geometric series index: not computable
Fisher's α: not computable
geometric series k: 0
Hurlbert's PIE: 1.0
Shannon's H: -0.0
Good's u: 0
Register
Baioconodon nordicum = †Baioconodon cf. nordicus 1