Police Point
Basic information
Sample name: Police Point
Sample aka: UAR-1
Reference: L. Krishtalka. 1973. Late Paleocene mammals from the Cypress Hills, Alberta. Special Publications of The Museum Texas Tech University 2:1-77 [ER 4115]
Geography
Country: Canada
State: Alberta
Coordinate: 49° 38' 55" N, 110° 3' 40" W
Coordinate basis: stated in text
Scale: quarry
Formation: Ravenscrag
Time interval: Middle Palaeocene
Zone: Tiffanian
Ma: 59.35
Age basis: AEO
Geography comments: "about 16 miles east of the village of Elkwater, Albert, in Lsd. 16, Sec. 15, Tp. 8, R. 1, W4"
elevation 4372 feet
elevation 4372 feet
Environment
Lithology: claystone
Taphonomic context: lake deposit
Habitat comments: "The fossiliferous beds" are "approximately three feet thick" and are "extremely fine-grained... thinly bedded, bentonitic [clay] deposits" that imply "a low energy environment... an inland lake... in which ash falls accumulated
"most of the specimens collected for study are isolated teeth" but there is "a small number of fragmentary jaws"
"most of the specimens collected for study are isolated teeth" but there is "a small number of fragmentary jaws"
Methods
Life forms: primates,ungulates,other large mammals,other small mammals
Sampling methods: screenwash
Sample size: 250 specimens
Years: 1961, 1966, 1967, 1969
Museum: UALVP
Sampling comments: discovered by J. A. Westgate and L. Hansen in 1961 and worked by the University of Alberta "under the direction" of R. C. Fox in 1966, 1967, and 1969, who "made small collections of fossiliferous rock totaling about 1000 pounds" and screen washed it in the laboratory
"actinopterygian fishes, salamanders, turtles, lizards and crocodilians are abundant"
"actinopterygian fishes, salamanders, turtles, lizards and crocodilians are abundant"
Metadata
Sample number: 4546
Contributor: John Alroy
Enterer: John Alroy
Created: 2024-12-03 10:08:29
Modified: 2024-12-03 10:08:29
Abundance distribution
19 species
5 singletons
total count 250
geometric series index: 30.1
Fisher's α: 4.778
geometric series k: 0.8182
Hurlbert's PIE: 0.8973
Shannon's H: 2.4544
Good's u: 0.9801
Each square represents a species. Square sizes are proportional to counts.
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Register
Ptilodus sp. | 11 | |
Fox (1990): "Ptilodus montanus" | ||
†Neoplagiaulax hunteri | 34 | |
†Parectypodus sinclairi | 33 | |
†Mesodma pygmaea | 37 | |
"Mesodma sp. P" named by Sloan (1987) | ||
†Mimetodon silberlingi | 1 | |
omitted by Fox (1990), apparently by mistake | ||
†Peradectes protinnominatus | 3 | |
Krishtalka et al. (1975): "Peradectes cf. elegans" | ||
Propalaeosinopa diluculi = †Bessoecetor septentrionalis | 19 | |
reidentified as "Propalaeosinopa albertensis" by Fox (1990), but this is a nomen dubium thought to be senior to diluculi by Dorr (1977) | ||
†Elpidophorus elegans | 15 | |
†Leptacodon tener | 33 | |
†Leptacodon packi | 8 | |
Litolestes notissimus = †Litocherus notissimus | 13 | |
Litolestes sp. | 1 | |
Nyctitherium sp. | 2 | |
cf. | ||
†Carpodaptes cf. cygneus | 25 | |
Fox (1990): "Carpodaptes cf. hazelae" | ||
Ignacius sp. | 1 | |
Fox (1990): "Phenacolemur frugivorus" | ||
†Paromomys depressidens | 2 | |
omitted by Fox (1990) | ||
†Plesiadapis cf. churchilli | 1 | |
Fox (1990): "Plesiadapis fodinatus" | ||
†Pararyctes pattersoni | 10 | |
Fox (1990): "Pararyctes sp."; another palaeoryctid is present according to Fox | ||
Ectocion sp. | 1 | |
Thewissen (1990): possibly Ectocion mediotuber; "Ectocion osbornianus" |