Prison Farm
Basic information
Sample name: Prison Farm

Sample aka: 20IA58

Reference: J. G. Brashler, M. R. Laidler, and T. J. Martin. 1998. The Prison Farm site (20IA58): a Woodland occupation in the Grand basin of Michigan. Midcontinental Journal of Archaeology 23(2):143-197 [ER 3192]
Geography
Country: United States

State: Michigan


Coordinate: 42° 59' N, 85° 6' W
Coordinate basis: based on nearby landmark

Time interval: Holocene

Ma: 0.00196

Age basis: radiocarbon (uncalibrated)

Geography comments: "on the grounds of the farm associated with the Ionia State Prison... a 60-acre field... approximately 8 km west of the confluence of the Maple River with the Grand" (coordinate based on Ionia Correctional Facility)
there is a conventional radiocarbon date of 1960 +/- 40 BP on "residue from a sherd"

Environment
Lithology: siltstone

Taphonomic context: human accumulation,settlement

Archaeology: ceramics,stone tools

Habitat comments: "dense silt loam soils"
"a major Middle Woodland occupation" with "several hundred projectile points, hundreds of ceramics" and "ground stone"
presence of structures is possible, but there has been no excavation

Methods
Life forms: carnivores,rodents,ungulates,birds,turtles,fishes,clams

Sampling methods: surface

Sample size: 302 specimens

Sampling comments: surface collected by the Guernsey family between 1962 and the publication date

Metadata
Sample number: 3501

Contributor: John Alroy

Enterer: John Alroy

Created: 2019-09-08 16:26:35

Modified: 2023-02-25 11:23:44

Abundance distribution
12 species
7 singletons
total count 302
geometric series index: 31.3
Fisher's α: 2.498
geometric series k: 0.6218
Hurlbert's PIE: 0.5628
Shannon's H: 1.1608
Good's u: 0.9768
Each square represents a species. Square sizes are proportional to counts.
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