Bangtail
Basic information
Sample name: Bangtail
Reference: P. D. Gingerich, P. Houde, and D. W. Krause. 1983. A new earliest Tiffanian (late Paleocene) mammalian fauna from Bangtail Plateau, western Crazy Mountain Basin, Montana. Journal of Paleontology 57(5):957-970 [ER 4116]
Geography
Country: United States
State: Montana
County: Park
Coordinate: 45.79° N, -110.80° W
Coordinate basis: stated in text
Scale: quarry
Formation: Fort Union
Time interval: Middle Palaeocene
Zone: Tiffanian
Ma: 60.4
Age basis: AEO
Geography comments: "about 110 m (350 ft) northwest of the Bangtail Ranger Station in the Gallatin National Forest... NW1/4 NW1/4, sec. 6, T1S, R8E"
"earliest Tiffanian"
"earliest Tiffanian"
Environment
Lithology: siliciclastic (mixed)
Habitat comments: "from three beds of calcareous nodules in a sequence of siltstones and hackly shale totalling 3.5 mi in thickness"
Methods
Life forms: primates,other small mammals
Sampling methods: quarry
Sample size: 27 specimens
Years: 1952, 1979, 1980
Museum: USNM
Sampling comments: "was first discovered in 1952 by William J. McMannis" who "collected about 20 kg of calcareous nodules" and the site "was relocated in 1979, when an additional 25 kg of bone-bearing nodules were collected from the surface. Quarrying was initiated in 1980 and approximately 200 kg of nodules were collected"
"bird bones, egg shell fragments, and plant debris" are also present
"bird bones, egg shell fragments, and plant debris" are also present
Metadata
Sample number: 4547
Contributor: John Alroy
Enterer: John Alroy
Modifier no: John Alroy
Created: 2024-12-03 10:50:53
Modified: 2024-12-03 11:40:27
Abundance distribution
9 species
4 singletons
total count 27
geometric series index: 22.8
Fisher's α: 4.727
geometric series k: 0.7598
Hurlbert's PIE: 0.7963
Shannon's H: 1.8698
Good's u: 0.8546
Each square represents a species. Square sizes are proportional to counts.
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Register
| Neoplagiaulacidae indet. | 6 | |
| "Ectypodus sp. C": possibly Parectypodus clemensi of Sloan (1981) | ||
| †Myrmecoboides montanensis | 3 | |
| †Aphronorus orieli | 9 | |
| †Leptacodon munusculum | 1 | |
| †Leptacodon cf. packi | 3 | |
| Palaechthon problematicus = †Plesiolestes problematicus | 1 | |
| †Palaechthon cf. woodi | 1 | |
| confirmed by Gunnell (1989) | ||
| †Nannodectes intermedius | 1 | |
| †Picrodus silberlingi | 2 | |