Y2K Quarry
Basic information
Sample name: Y2K Quarry
Reference: R. Secord. 2008. The Tiffanian land-mammal age (middle and late Paleocene) in the northern Bighorn Basin, Wyoming. University of Michigan Papers on Paleontology 35:1-192 [ER 4123]
Geography
Country: United States
State: Wyoming
County: Park
Coordinate: 44° 52' 18" N, 108° 52' 19" W
Coordinate basis: stated in text
Scale: quarry
Time interval: Late Palaeocene
Zone: Tiffanian
Section: Polecat Bench
Unit number: 6
Unit order: below to above
Max Ma: 58.959
Min Ma: 57.656
Age basis: paleomag
Geography comments: the location is stated in UTM coordinates
within Ti-5b, within chron 25r, and at 692 m (the age assignment is based on 25r and follows Ogg 2000)
within Ti-5b, within chron 25r, and at 692 m (the age assignment is based on 25r and follows Ogg 2000)
Environment
Lithology: mudstone
Habitat comments: Y2K is one of the area's "mudstone quarries" which "show little or no evidence of water transport, and associated dental material is not uncommon"
Methods
Life forms: carnivores,primates,ungulates,other large mammals,other small mammals
Sample size: 293 specimens
Years: 2000
Sampling comments: "One important discovery made in 2000 was Y2K Quarry (Secord et al., 2002), which is late Tiffanian in age, and has yielded a diverse collection of micromammals"
information on sampling methods is otherwise not given
information on sampling methods is otherwise not given
Metadata
Sample number: 4565
Contributor: John Alroy
Enterer: John Alroy
Created: 2024-12-06 22:10:52
Modified: 2024-12-06 22:10:52
Abundance distribution
22 species
5 singletons
total count 293
geometric series index: 34.8
Fisher's α: 5.511
geometric series k: 0.8235
Hurlbert's PIE: 0.8759
Shannon's H: 2.3957
Good's u: 0.9830
Each square represents a species. Square sizes are proportional to counts.
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