Outline is Representative of Size and Shape:
Name Details:
Identified By: Richard MacNeish
Named For: Type Site
Date Identified: 1961
Type Site: El Riego Cave, Tehuacan Valley, Mexico
Identified By: Richard MacNeish
Named For: Type Site
Date Identified: 1961
Type Site: El Riego Cave, Tehuacan Valley, Mexico
Point Validity:
Valid type
MacNeish was a pioneering anthropologist who was most notable for his excavations and studies at Tamaulipas Mexico. This type has been references in professional publications and is considered a valid type.
MacNeish was a pioneering anthropologist who was most notable for his excavations and studies at Tamaulipas Mexico. This type has been references in professional publications and is considered a valid type.
El Riego Concave Base
Cluster: Description of Physical Characteristics and Flaking Pattern:
This is a long medium to large lanceolate with an elliptical cross section. The blade is excurvate with the tip curving in and becoming parallel towards the base. The blade towards the base may be slightly contracting inward. The blade may be slightly serrated. The base is deeply concaved. Heavy grinding is commonly seen on the hafting area including basal grinding. This type is formed using perfusion flaking to form the preform then finished using will controlled pressure flaking. The basal edge is thinned using percussion flaking and finished with grinding. The flaking pattern is generally random, but collateral is sometimes seen.
Size Measurements:
Length - 50 to 108 mm (average 81 mm), Width - 24 to 35 mm (average 30 mm), Thickness - 7 to 14 mm (average 9 mm), Basal Concavity - 10 to 27 mm (average 15 mm) (MacNeish, 1967)
Length - 50 to 108 mm (average 81 mm), Width - 24 to 35 mm (average 30 mm), Thickness - 7 to 14 mm (average 9 mm), Basal Concavity - 10 to 27 mm (average 15 mm) (MacNeish, 1967)
Commonly Utilized Material:
Additional Comments:
Distribution:
Distribution Comments:
This point is primarily found in the Tehuacan Valley of Mexico. However, points found in Valley of Mexico labeled "Meserve Like" points are more characteristic of this type.
This point is primarily found in the Tehuacan Valley of Mexico. However, points found in Valley of Mexico labeled "Meserve Like" points are more characteristic of this type.
Age / Periods:
Date: 8,500 - 6,800 B.P.
Cultural Period: Transitional Paleo to Early
Archaic
Glacial Period: Early to Middle Holocene
Culture:
Date: 8,500 - 6,800 B.P.
Cultural Period: Transitional Paleo to Early
Archaic
Glacial Period: Early to Middle Holocene
Culture:
Age Details:
Other points in this cluster / Related / Associated Points:
Golondrina
Golondrina
