Outline is Representative of Size and Shape:
Name Details:
Identified By: Michael W. Spence
Named For:
Date Identified: 1971
Type Site:
Identified By: Michael W. Spence
Named For:
Date Identified: 1971
Type Site:
Point Validity:
Valid type
Michael Spence is a distinguished anthropologist who retired Professor Emeritus from the Department of Anthropology, University of Western Ontario. He conducted extensive research in Mexico and Ontario. This type was identified in his publication on cultures of Mexico.
Michael Spence is a distinguished anthropologist who retired Professor Emeritus from the Department of Anthropology, University of Western Ontario. He conducted extensive research in Mexico and Ontario. This type was identified in his publication on cultures of Mexico.
Cerro de Ayala Concave Base
Cluster: Description of Physical Characteristics and Flaking Pattern:
This is a small triangular point with a thin flattened cross section. The blade ranges from straight to slightly excurvate and flares out towards the base. The basal corners range from sharp to rounded. This point has a random flaking pattern.
Size Measurements:
Length -average 25 mm, Blade Width - average 10 mm, Thickness - average 3 mm, ***Based on small sample size***
Length -average 25 mm, Blade Width - average 10 mm, Thickness - average 3 mm, ***Based on small sample size***
Commonly Utilized Material:
Additional Comments:
Distribution:
Distribution Comments:
These points are primarily associated with the Guadiana Chalchihuites cultural sites in Durango.
These points are primarily associated with the Guadiana Chalchihuites cultural sites in Durango.
Age / Periods:
Date: 1,4580 - 650 B.P.
Cultural Period:Preclassic to Classic
Glacial Period: Vandal to Medieval Warm
Culture: Guadiana Chalchihuites culture
Date: 1,4580 - 650 B.P.
Cultural Period:Preclassic to Classic
Glacial Period: Vandal to Medieval Warm
Culture: Guadiana Chalchihuites culture
Age Details:
Similar Points:
Aguaje, Durango Concave Base, Fresno, Guadiana Concave Base, Loma Concave Base, Tula
Aguaje, Durango Concave Base, Fresno, Guadiana Concave Base, Loma Concave Base, Tula
Other points in this cluster / Related / Associated Points:
