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: 45° 52' 18" N, 109° 52' 19" W
Latlng 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
Net or trap nights: 0
Basal area status: not applicable
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 no: 4565
Contributor no: John Alroy
Enterer: John Alroy
Created: 2024-12-06 22:10:52
Modified: 2024-12-06 22:10:52
Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
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: 0.983
Register
| †Parectypodus laytoni | 1 | |
| †Ectypodus powelli | 46 | |
| †Prochetodon cavus | 1 | |
| Microcosmodon sp. | 5 | |
| †Prodiacodon cf. tauricinerei | 15 | |
| Palaeictops sp. | 1 | |
| cf. | ||
| †Palaeoryctes jepseni | 9 | |
| type | ||
| †Labidolemur soricoides | 2 | |
| †Mylanodon rosei | 2 | |
| †Viverravus schaffi (viverravid) | 3 | |
| †Litolestes ignotus | 4 | |
| †Adunator minutus | 15 | |
| †Leptacodon packi | 3 | |
| Plagioctenodon sp. | 3 | |
| †Plesiadapis cf. dubius | 59 | |
| Arctodontomys sp. | 1 | |
| †Micromomys millennius | 1 | |
| type | ||
| †Carpolestes dubius | 28 | |
| †Phenacolemur pagei | 54 | |
| †Princetonia cf. yalensis | 24 | |
| †Arctocyon cf. nexus | 9 | |
| †Ectocion mediotuber | 7 | |