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.
Guadiana Stemmed
Cluster: Description of Physical Characteristics and Flaking Pattern:
This is a medium triangular contracting stem point with an elliptical cross section. The blade is excurvate with asymmetrical shoulders. One shoulder is prominent and horizontal, and the other shoulder ranges from prominent to weak and at an upward angle. The stem is short, broad and contracting with a convex base. Occasionally there is a center basal notch in the stem. This point has a random flaking pattern.
Size Measurements:
Length - incomplete, Blade Width - 16 to 23 mm (average 19 mm), Thickness - 4 to 7 mm (average 6 mm)
Length - incomplete, Blade Width - 16 to 23 mm (average 19 mm), Thickness - 4 to 7 mm (average 6 mm)
Commonly Utilized Material:
Additional Comments:
Distribution:
Distribution Comments:
These point are primarily found in Loma and Guadiana Chalchihuites cultural regions of Chihuahua, Durango, Zacatecas, San Luis Potosi, Jalisco, and Aguascalientes Mexico.
These point are primarily found in Loma and Guadiana Chalchihuites cultural regions of Chihuahua, Durango, Zacatecas, San Luis Potosi, Jalisco, and Aguascalientes Mexico.
Age / Periods:
Date: 1,800 - 1,050 B.P.
Cultural Period:Transitional Archaic to Preclassic
Glacial Period: Roman to Medieval Warm
Culture: Guadiana Chalchihuites and Loma San Gabriel cultures
Date: 1,800 - 1,050 B.P.
Cultural Period:Transitional Archaic to Preclassic
Glacial Period: Roman to Medieval Warm
Culture: Guadiana Chalchihuites and Loma San Gabriel cultures
Age Details:
Similar Points:
Augustin, Graceros, Hidalgo, Jora, San Martin, San Nicolas, Torro, Tallarin, Trinidad
Augustin, Graceros, Hidalgo, Jora, San Martin, San Nicolas, Torro, Tallarin, Trinidad
Other points in this cluster / Related / Associated Points:
