McCann Canyon
Basic information
Sample name: McCann Canyon
Sample aka: UNSM Cr-117; UNSM Cr-125
Reference: W. W. Korth. 1992. Fossil small mammals from the Harrison Formation (late Arikareean: earliest Miocene), Cherry County, Nebraska. Annals of Carnegie Museum 61(2):69-131 [ER 2342]
Geography
Country: United States
State: Nebraska
Coordinate: 42° 47' N, 100° 58' W
Coordinate basis: stated in text
Formation: Harrison
Time interval: Early Miocene
Ma: 23.9
Geography comments: UNSM Cr-125 is in the "NW 1/4, sec. 33, T33N, R31W"
"early Miocene or late Arikareean"
2008 AEO age estimate
"early Miocene or late Arikareean"
2008 AEO age estimate
Environment
Substrate: ground surface
Lithology: sandstone
Habitat comments: "poorly sorted channel sand containing sandstone pebbles"
Methods
Life forms: rodents,other small mammals
Sampling methods: screenwash
Sample size: 713 specimens
Years: 1981 - 1986
Metadata
Sample number: 2506
Contributor: John Alroy
Enterer: John Alroy
Created: 2017-02-13 11:50:36
Modified: 2017-02-13 00:50:36
Abundance distribution
29 species
7 singletons
total count 713
extrapolated richness: 46.1
Fisher's α: 6.075
geometric series k: 0.8053
Hurlbert's PIE: 0.6168
Shannon's H: 1.7011
Good's u: 0.9902
Each square represents a species. Square sizes are proportional to counts.
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