Outline is Representative of Size and Shape:

Name Details:
Identified By:  William Richie
Named For:  Type Site Location
Date Identified:  1961
Type Site:   Robinson Site, Onondaga County, New York
Point Validity: Valid type

Richie was a prominent anthropologist who served as the state archaeologist for the State of New York, the State Museum and Science Service.  He excavated over 100 sites in the state of New York and published over 150 professional publications.  He named this type in a professional publication and this type has many professional references.  This is considered a valid type.
Brewerton Eared
Cluster: Matanzas Cluster
Description of Physical Characteristics and Flaking Pattern:
This is a small to medium triangular side notch point with an elliptical cross section.  The blade ranges from straight to excurvate.  The shoulders are weak and shallow forming weak auricles (ears).  The base ranges from straight to concave.  This point has a random flacking pattern. 
Size Measurements:

Total Length - 19 to 63 mm (commonly 27 to 38 mm),  Width - 1.5 to 2 times the height as the width (19 to 29 mm),  Thickness - 5 to 9 mm (average 6 mm)
Commonly Utilized Material:
Quartz, quartzite, rhyolite, chert, jasper
Additional Comments:

This is a rarely found point of the Brewerton Complex.  This point is primarily found in the northeastern states and into the Ohio River Valley.  It is rarely found in any of the other highlighted areas.

Richie (1971) suggest that this variant was developed from the earlier Brewerton Side notch point,.  Justice (1987) argues that this point most likely did not develop from the Side Notch point, but is an extension of the Eared Triangle form.  He notes that examples of both types, when the length is the same, the Eared Triangle variation is wider and thinner suggesting that this is a re-sharpened version of the Eared Triangle.
Distribution:
Distribution Comments:

The Brewerton Complex points are primarily found in the northeastern states and into the Ohio River valley.  It has been reported down into the Tennessee River Valley and mid to lower Mississippi River valley with less frequency<
Age / Periods:
Date: 5,000 - 4,000 B.P.
Cultural Period: Middle to Late Archaic
Glacial Period: Middle Holocene to Neoglacial
Culture: Brewerton Culture
Age Details:
Brewerton points have been radio carbon dated to 2,750 +/- 150 B.C. (Kennedy)
Similar Points:
KittatinnyRowan, SteubenvilleFox CreekYadkin Eared
Other points in this cluster / Related / Associated Points:
Brewerton Corner Notch, Brewerton Side Notch Brewerton Eared Triangle, Matanzas
Pictures: 

Pictures Provided By:
 Brewerton Eared Projectile Point, Brewerton Eared Arrowhead
David Bennett
Paul Schipper
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References: (See Reference Page, Entry Number):

12, 23, 30, 37, W2, W10, W11