Divide Quarry
Basic information
Sample name: Divide 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° 39' 19" N, 108° 18' 8" W
Coordinate basis: stated in text
Scale: quarry
Time interval: Middle Palaeocene
Zone: Tiffanian
Section: Polecat Bench
Unit number: 3
Unit order: below to above
Max Ma: 62.278
Min Ma: 59.237
Age basis: paleomag
Geography comments: the location is stated in UTM coordinates
within Ti-4a, within chron 26r, and at 265 m ("at the 210 m level" in the composite northwestern Wyoming section: Gingerich and Clyde 2001) (the age assignment based on 26r and follows Ogg 2000)
within Ti-4a, within chron 26r, and at 265 m ("at the 210 m level" in the composite northwestern Wyoming section: Gingerich and Clyde 2001) (the age assignment based on 26r and follows Ogg 2000)
Environment
Lithology: sandstone
Taphonomic context: fluvial deposit
Habitat comments: "Gidley, Rock Bench, Douglass, Cedar Point, and Divide quarries are clay-gall quarries (Fig. 7). in this type of quarry, fossils typically occur as a lag deposit, at or near the base of a channel sandstone"
Methods
Life forms: carnivores,primates,ungulates,other large mammals,other small mammals
Sample size: 483 specimens
Sampling comments: information on sampling methods is not given
Metadata
Sample number: 4563
Contributor: John Alroy
Enterer: John Alroy
Created: 2024-12-06 21:31:10
Modified: 2024-12-06 21:31:10
Abundance distribution
38 species
7 singletons
total count 483
geometric series index: 61.2
Fisher's α: 9.666
geometric series k: 0.8788
Hurlbert's PIE: 0.8544
Shannon's H: 2.5138
Good's u: 0.9856
Each square represents a species. Square sizes are proportional to counts.
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