Name Details:
Named By: Howard D. Winters
Named For:
Date Identified: 1969
Type Site: Wabash Valley, Illinois
Trimble
(Riverton Series)
Cluster: Merom Cluster
Commonly Utilized Material:
Locally available cherts commonly utilizing heat treatment
Date:
Cultural Period:
3,600 - 2,800 B.P.
Late Archaic
Middle Holocene
Late Archaic Riverton Culture
Glacial Period:
Culture:
Outline is Representative of Common Size and Shape:
Description of Physical Characteristics and Flaking Pattern:
This is a small triangular expanding stem point. The cross section may vary from elliptical to lenticular. The blade may vary
from straight (more common in the related Trimble point) to excurvate (more common in the Merom point). The Trimble point has a longer narrower blade than the Merom point
does. The shoulders are primarily horizontal, but may vary to a slight barb to a having an upward slope. The stem is
expanding and is commonly short. The base is primarily straight, but may vary to convex. This point has a random
flaking pattern. The Trimble point generally has a higher quality of workmanship
than seen on the Merom point.
Size Measurements: Total Length - 19 to 36 mm,
Stem Length - 5 to 9 mm, Blade Width - 11 to 20 mm, Neck
Width -6 to 12 mm, Stem Width - 7 to 14 mm, Thickness -
4 to 8 mm
Distribution:
Distribution Comments:
This point is primarily found in Wabash Valley and into the Ohio River Valley and the Illinois River Valley. This point is found in areas associated with the Riverton Culture.
Additional Comments:
The Trimble point may be types as a Merom Expanded (Justice / Kudlaty, 1999). Both points are commonly found together. The difference is that Trimble points commonly has a straight blade while the Merom
point has a excurvate blade. The Trimble point tends to have a longer and narrower blade than the Merom point. Trimble points tend to have a higher quality of workmanship than the Merom point. It is
thought that the Trimble point may be an early variant of the Merom point (Justice, 1987).
For example, see link below.
Point Validity: Valid Type
Winters is a distinguished
anthropologist who did extensive research in Illinois. He identified this point during the survey of the Wabash Valley in Illinois. This point was named in a professional publication and has many professional references. This is a valid type.
.
Age Details:
Pictures Provided By:
References: (See Reference Page, Entry Number):
17,
23, 30, 37
Trimble Projectile Point, Trimble Arrowhead
