Other Websites with Detailed Information:
Name Details:
Named By: Terry L. Jones and Mark Hylkema
Named For: Type Site
Date Identified: 1988
Type Site: Rossi Site, Monterey Peninsula, Monterey County, California
Rossi Expanding Stem
Cluster: Rossi Cluster
Commonly Utilized Material:
Date:
Cultural Period:
4,000 - 2,100 B.P.
Late to Transitional Archaic
Neoglacial to Roman Warm
Glacial Period:
Culture:
Outline is Representative of Size and Shape:
Description of Physical Characteristics and Flaking Pattern:
This is
a thick medium to large triangular stemmed point with an elliptical cross section. The blade is primarily excurvate, but may range to recurvate or incurvate for
heavily re-sharpened examples. The shoulders may vary from slightly barbed to horizontal. Heavily re-sharpened examples
may have reduced shoulders. The stem may range from straight (Square Stem variation) to expanding (Expanding Stem variation) and has an equal length as it does width. The base ranges from straight to slightly convex. This point has a random flaking pattern.
Size Measurements: Total
Length - 41 to 89 mm (average 66 mm), Stem Length - 13 to 20 mm,
Blade Width - 26 to 41 mm (average
31 mm), Stem Width at Shoulders - 14 to 22 mm, Basal Width -
19 to 26 mm, Thickness - 8 to 15 mm (average 12 mm)
Distribution:
Distribution Comments:
This point is primarily found in the central coastal regions and into the central coastal ranges of California.
Additional Comments:
Point Validity: Valid Type
Jones is a professional anthropologist and serves as a professor and chair of the Department of Anthropology at California Polytechnic State
University. Hylkema is a California State Parks Archeologist and serves as in instructor in anthropologist at Foothill Collage, Los Altos California. This type was named in a
professional publication and has many professional references. This is considered a valid type.
.
Age Details:
Pictures Provided By:
As Illustrated by Justice (2002)
As Illustrated by Jones and Hylkema (1988)
References: (See Reference Page, Entry Number):
16, 23, 30, 153
Rossi Expanding Stem Projectile Point, Rossi Expanding Stem Arrowhead
