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 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 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.
Jay Stemmed
Cluster: Bajada / Escobas Cluster Description of Physical Characteristics and Flaking Pattern:
This is a medium to large stemmed point with and elliptical cross section. The blade is primarily excurvate, but may also be straight. The shoulders are weak to absent and have an upward angle. The stem may range from straight to slightly expanding. The stem is longer than most points and may be as long as the blade. The base varies from straight to convex with basal and hafting region grinding present. This point has a random flaking pattern.
Size Measurements:
Total Length - 31 to 65 mm (average 47 mm), Stem Length - 14 to 35 mm (average 25mm), Blade Width - 15 to 42 mm (average 23 mm), Stem Width at Shoulders - 13 to 38 mm (average 22 mm), Basal Width - 9 to 17 mm (average 13 mm), Thickness - 5 to 14 mm.
Total Length - 31 to 65 mm (average 47 mm), Stem Length - 14 to 35 mm (average 25mm), Blade Width - 15 to 42 mm (average 23 mm), Stem Width at Shoulders - 13 to 38 mm (average 22 mm), Basal Width - 9 to 17 mm (average 13 mm), Thickness - 5 to 14 mm.
Commonly Utilized Material:
Additional Comments:
Distribution:
Distribution Comments:
Point is found from Mexico to southern Arizona and into the central Rio Grande Valley in New Mexico and into Texas. This type was reported at the la Paya site in northern Sonora, Mexico.
Point is found from Mexico to southern Arizona and into the central Rio Grande Valley in New Mexico and into Texas. This type was reported at the la Paya site in northern Sonora, Mexico.
Age / Periods:
Date: 11,000 - 8,000 B.P.
Cultural Period: Transitional Paleo to Early Archaic
Glacial Period: Late Pleistocene to Early Holocene
Culture: Oshara Tradition
Date: 11,000 - 8,000 B.P.
Cultural Period: Transitional Paleo to Early Archaic
Glacial Period: Late Pleistocene to Early Holocene
Culture: Oshara Tradition
Age Details:
This is part of the Quemado Phase and Concho Complex, Aneth Complex, and Moab Complex.
This is part of the Quemado Phase and Concho Complex, Aneth Complex, and Moab Complex.
Similar Points:
Agate Basin, Angostura, Bajada, Hell Gap, Lake Mohave, Rio Grande, Sandia, Silver Lake
Agate Basin, Angostura, Bajada, Hell Gap, Lake Mohave, Rio Grande, Sandia, Silver Lake
