Anceney
Basic information
Sample name: Anceney
Reference: J. F. Sutton and W. W. Korth. 1995. Rodents (Mammalia) from the Barstovian (Miocene) Anceney local fauna, Montana. Annals of Carnegie Museum 64(4):267-314 [ER 2343]
Geography
Country: United States
State: Montana
County: Gallatin
Coordinate: 45° 40' N, 111° 18' W
Coordinate basis: stated in text
Formation: Madison Valley
Time interval: Early Miocene
Ma: 17.1
Geography comments: "approximately 21 km (13 mi) west of Bozeman... along Route 131 (center, N 1/2, sec. 13, T2S, R3E)"
said to be early Barstovian
2008 AEO age estimate
said to be early Barstovian
2008 AEO age estimate
Environment
Substrate: ground surface
Lithology: sandstone
Habitat comments: "channel accumulations of sands, gravel, clays, and tuffaceous materials"
Methods
Life forms: rodents
Sampling methods: screenwash
Sample size: 1035 specimens
Sampling comments: only rodents are listed; other small mammals are not described
Metadata
Sample number: 2507
Contributor: John Alroy
Enterer: John Alroy
Created: 2017-02-13 12:24:28
Modified: 2017-02-13 01:44:23
Abundance distribution
16 species
3 singletons
total count 1035
geometric series index: 22.4
Fisher's α: 2.686
geometric series k: 0.6581
Hurlbert's PIE: 0.6800
Shannon's H: 1.5623
Good's u: 0.9971
Each square represents a species. Square sizes are proportional to counts.
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Register
| Trilaccogaulus bettae | 141 | |
| new | ||
| Mylagaulus vetus | 15 | |
| Marmotini indet. | 18 | |
| "Tamias sp." | ||
| Spermophilus (Otospermophilus) jerae | 7 | |
| new | ||
| Cynomys sp. | 2 | |
| questionably referred | ||
| Euroxenomys inconnexus | 14 | |
| new | ||
| Mookomys thrinax | 75 | |
| new | ||
| Mookomys cf. formicarum | 2 | |
| Peridiomys sp. | 1 | |
| Peridiomys halis | 180 | |
| new | ||
| Perognathus ancenensis | 20 | |
| new | ||
| Perognathus sp. | 1 | |
| Cupidinimus madisonensis | 532 | |
| Cupidinimus cf. eurekensis | 1 | |
| Phelosaccomys cf. annae | 14 | |
| Copemys lindsayi | 12 | |
| new | ||