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.
Sain Alto Triangular
Cluster: Late Southern Triangle Cluster Description of Physical Characteristics and Flaking Pattern:
This is a medium triangular point with an elliptical cross section. The blade is relatively narrow and ranges from primarily straight to slightly excurvate. The base varies from straight to slightly convex with with well defined basal corners. This point has a random flaking pattern.
Size Measurements:
Length - 35 to 56 mm (average 45 mm), Blade Width - 18 to 33 mm (average 24 mm), Thickness - 3 to 12 mm (average 6 mm)
Length - 35 to 56 mm (average 45 mm), Blade Width - 18 to 33 mm (average 24 mm), Thickness - 3 to 12 mm (average 6 mm)
Commonly Utilized Material:
Additional Comments:
The Suchil Triangular is similar to the Sain Alto Triangular in characteristics, but the Suchil is smaller than the larger Sain Alto Triangular (Spence, 1971).
The Sain Alto Triangular and Rio Grande Triangular are similar in characteristics except that the Rio Grande Triangular tends to be wider with more mass and has a sharper convergence of the blade and base (Spence, 1971).
The Suchil Triangular is similar to the Sain Alto Triangular in characteristics, but the Suchil is smaller than the larger Sain Alto Triangular (Spence, 1971).
The Sain Alto Triangular and Rio Grande Triangular are similar in characteristics except that the Rio Grande Triangular tends to be wider with more mass and has a sharper convergence of the blade and base (Spence, 1971).
Distribution:
Distribution Comments:
These point are primarily found in Llano Grande, Loma, Guadiana, and Suchil Chalchihuites cultural regions of Chihuahua, Sonora, Sinloa, Nayarit, Durango, Zacatecas, San Luis Potosi, Jalisco, and Aguascalientes Mexico.
These point are primarily found in Llano Grande, Loma, Guadiana, and Suchil Chalchihuites cultural regions of Chihuahua, Sonora, Sinloa, Nayarit, Durango, Zacatecas, San Luis Potosi, Jalisco, and Aguascalientes Mexico.
Age / Periods:
Date: 3,000 - 1,050 B.P.
Cultural Period:Transitional Archaic to Preclassic
Glacial Period: Neoglacial to Medieval Warm
Culture: Llano Grande, Loma, Guadiana, and Suchil cultures
Phase:
Age Details:
This type is associated with the Los Caracoles complex and remains dominate through Succeeding periods.
This type is associated with the Los Caracoles complex and remains dominate through Succeeding periods.
Other points in this cluster / Related / Associated Points:
