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.
Navacoyan Concave Base
Cluster: Late Southern Triangle 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 with a rough concave base and rounded basal corners. This point is formed from a flake with minimal retouching of the edges. This point has a random flaking pattern.
Size Measurements:
Length - 19 to 21 mm (average 20 mm), Blade Width - 8 to 15 mm (average 12 mm), Thickness - 2 to 3 mm (average 3 mm) ***Based on small sample size***
Length - 19 to 21 mm (average 20 mm), Blade Width - 8 to 15 mm (average 12 mm), Thickness - 2 to 3 mm (average 3 mm) ***Based on small sample size***
Commonly Utilized Material:
Additional Comments:
Distribution:
Distribution Comments:
This point is found in associations with late Guadiana Chalchihuites cultural sites in Durango.
This point is found in associations with late Guadiana Chalchihuites cultural sites in Durango.
Age / Periods:
Date: 1,450 - 1,050 B.P.
Cultural Period: Preclassic
Glacial Period: Vandal Minimum
Culture: Guadiana Chalchihuites Culture
Age Details:
Similar Points:
Cerro de Ayala Concave Base, Guadiana Concave Base, Loma Concave Base, Los Angeles Concave Base , Tula
Cerro de Ayala Concave Base, Guadiana Concave Base, Loma Concave Base, Los Angeles Concave Base , Tula
Other points in this cluster / Related / Associated Points:
