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Those other areas were not included in this research. Location of Coso Style rock art area LOCATIONS AND FREQUENCY Grant and his colleagues originally illustrated 13 rock art panels containing 17 individual projectile point images occurring at five distinct localities within the Coso Range (Grant et al. Five of these images depict anthropomorphic figures with single or multiple projectile point adornments (Figure 2). Well-grounded estimates for the total number of petroglyph elements in the entire Coso Range locality now suggest a minimum tally of 100,000 individual elements (Gilreath 1997).
The remaining eight (8) images were individual glyphs depicting dart points hafted to wooden foreshafts. Yet no more than 26 glyphs bearing 38 individual projectile point images have been identified. (1968) and by our own field visits, we now recognize projectile point petroglyphs at the following localities: CA-Iny-9A/S-15 (Sheep Canyon- formally recorded as CA-INY-1375) (8), Little Petroglyph (Renegade) Canyon (6), Big Petroglyph Canyon (5), Dead End Canyon (1), CA-Iny-11 (Darwin Wash) (2), CA-Iny-5 (Junction Ranch 3/Sunrise Cliffs) (2), CA-Iny-43 (Parrish Gorge) (2) and Little Lake (2).
CLASSIFICATION OF POINT STYLES Three broad categories of projectile point forms are commonly recognized in the Great Basin: shouldered, side-notched and corner-notched (Thomas 1981).
Although no true metrics are available for the Coso point petroglyphs (such as the actual length, width, thickness or weight of the artifacts they represent), it is possible to estimate from the glyph outlines their gross general morphology.
The logical conclusion is that the predominant depiction of points in Coso petroglyphs was a corner-notched image with noticeable barbs.
In this study we consider what the most likely analog or morphological equivalent for this corner-notched point form is in terms of standard Great Basin projectile point typology (Holmer 1986; Thomas 1981).
Unfortunately the bases on all the point petroglyphs are obscured by the petroglyph representation itself – since they all are rendered as though they were hafted on foreshafts.Yet we think this is actually a “visual short hand” and are intended as an artistic convention meant to depict the prominently represented corner-notches, barbs or tangs as seen clearly in the outlines of the less stylized, isolated, corner-notched Coso point petroglyphs (Figures 3 and 4).For the corner-notched examples, the notch opening index, as represented in the most realistically rendered, individual Coso point images, might be estimated to average about 50 degrees, the distal shoulder angle would average about 140 degrees and proximal shoulder angles might average about 90 degrees.Therefore we believe those dart point depictions and XRF dates place the Coso projectile point drawings during a range of time from about 2000 BC to AD 1.The latter age range is synchronous with the a period of dart and atlatl use and is coterminous with the earliest accepted dates for the initiation of Rose Spring Series arrow points (ca. Also some surprising new observations associate the feminine gender with at least two of the projectile point petroglyph images.
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Assuming that the points depicted do not have concave bases, they would appear to have basal indentation ratios near 1.0.