Outline is Representative of Size and Shape:
Name Details:
Identified By: Cynthia Irwin-Williams
Named For:
Date Identified: 1973
Type Site: Arroyo Cuervo Valley, New Mexico
Identified By: Cynthia Irwin-Williams
Named For:
Date Identified: 1973
Type Site: Arroyo Cuervo Valley, New Mexico
Point Validity:
Valid type
Irwin-Williams was a distinguished and influential anthropologist who did extensive work in Colorado and the surrounding region. The studied, identified, and named the Picosa Archaic Culture. This point was named in a professional publication and has many professional references. This is considered a valid type.
Irwin-Williams was a distinguished and influential anthropologist who did extensive work in Colorado and the surrounding region. The studied, identified, and named the Picosa Archaic Culture. This point was named in a professional publication and has many professional references. This is considered a valid type.
San Jose Stemmed
Cluster: San Jose Cluster Description of Physical Characteristics and Flaking Pattern:
This is a small to medium point with a flattened to elliptical cross section. The blade may range from excurvate to straight. These points are most noted for their short serrated blades which is most commonly seen. The shoulders are weak to absent angle upwards towards the tip. The stem may range from straight to expanding with the expanding style most common. The base is concaved with basal grinding on the base and stem. The width of the stem generally equals the length of the stem. This point is manufactured using primary percussion flaking with secondary pressure flaking commonly obscuring the primary flaking, forming a random flaking pattern.
Size Measurements:
Total Length - 17 to 55 mm (average 33 to 38 mm), Stem Length - 9 to 15 mm (typically has a blade to stem ratio of 1:13) , Blade Width - 11 to 27 mm (average 20 mm), Basal Width - 13 to 23 mm, Thickness - 5 to 8 mm
Total Length - 17 to 55 mm (average 33 to 38 mm), Stem Length - 9 to 15 mm (typically has a blade to stem ratio of 1:13) , Blade Width - 11 to 27 mm (average 20 mm), Basal Width - 13 to 23 mm, Thickness - 5 to 8 mm
Commonly Utilized Material:
Additional Comments:
This point is similar to the McKean point, but can be distinguished by the shorter stem and concaved base.
This point is commonly found with Bajada points (Justice, 2002).
These points are not reported have a distribution into the plains region, but may be easily confused with re-sharpened Dalton points in that area (Justice, 2002).
This point is similar to the McKean point, but can be distinguished by the shorter stem and concaved base.
This point is commonly found with Bajada points (Justice, 2002).
These points are not reported have a distribution into the plains region, but may be easily confused with re-sharpened Dalton points in that area (Justice, 2002).
Distribution:
Distribution Comments:
This point is primarily found in the mid Rio Grande River basin and into the Uncompahgre Plateau, Colorado Plateau and the Great Basin. This type was reported at the La Playa site in northern Sonora, Mexico.
This point is primarily found in the mid Rio Grande River basin and into the Uncompahgre Plateau, Colorado Plateau and the Great Basin. This type was reported at the La Playa site in northern Sonora, Mexico.
Age / Periods:
Date: 5,300 - 3,800 B.P.
Cultural Period: Middle Archaic
Glacial Period: Middle Holocene
Culture: Oshara Tradition
Date: 5,300 - 3,800 B.P.
Cultural Period: Middle Archaic
Glacial Period: Middle Holocene
Culture: Oshara Tradition
Age Details:
Similar Points:
Bajada, Baker, Barreal, Chiricahua, Duncan, Elko Eared, Escobas, Hanna, La Playa, Meserve, Uvalde, Ventana
Bajada, Baker, Barreal, Chiricahua, Duncan, Elko Eared, Escobas, Hanna, La Playa, Meserve, Uvalde, Ventana
Other points in this cluster / Related / Associated Points:
Bajada
Bajada
