Point Type: Bifurcate - Lecroy
Associated Date: 10000 - 8000 B.P.
Morphology: Stemmed
Length Point:
Ave: [ 40 +/- 6 mm]
Range: [ 32 to 88 mm]
Example: [ 47 mm]
Width Point:
Ave: [ 29 +/- 3 mm]
Range: [ 22 to 52 mm]
Example: [ 33 mm]
Point Ratio (Width/Length):
Ave: [.73 +/- .09 ]
Length of Stem:
(Maximum)
Ave: [ 13 +/- 3 mm]
Range: [ 10 to 18 mm]
Example: [ 12 mm]
Width of Stem:
(Maximum)
Ave: [ 19 +/- 5 mm]
Range: [ 14 to 27 mm]
Example: [ 27 mm]
Stem Length/Point Ratio:
(Length of Stem / Length Point)
Ave: [.34 +/- .06 ]
Stem Width/Point Ratio:
(Width of Stem / Width Point)
Ave: [.66 +/- .11 ]
Stem Ratio: Ave: [.72 +/- .22 ] 1. Short (<= 0.7)
(Stem Length 2. Proportionate (> 0.7 & < 1.3)
/ Stem Width) 3. Long (>= 1.3)
Stem Form (Subjective):
1. Contracting 2. Parallel 3. Expanding 4. Asymmetric
Base Form (Subjective):
1. Convex 2. Straight 3. Concave
4. Notch 5. Lobe 6. Point
Blade Ratio: Ave: [ .9 +/- .1 ] 1. Lanceolate (>= 2.0 mm)
([Length Point 2. Isosceles (< 2.0 & > 1.2 mm)
- Length Stem] / Width) 3. Equilateral (<= 1.2 mm)
Blade Curvature: Ave: [ .9 +/- .7 mm] 1. Very Convex (>= 5 mm)
(Cord height of curve 2. Convex (< 5 mm & >= 2 mm)
from Shoulder to Tip) 3. Straight (< 2 mm & >= -2 mm)
4. Concave (< -2 mm)
5. Mixed (< -2 mm & > 2 mm)
Shoulder Angle: Ave: [ 87 +/- 16 o]
(Angle of Shoulder from
Tip to Shoulder to Shoulder Juncture)
Shoulder Juncture (Subjective): 1. Curve 2. Angle 3. Straight
© 1993 -
Tara Prindle