Abstract
This paper presents a second compilation of recently obtained radiocarbon and oxidizable carbon ratio dates obtained from archaeological sites in East Texas. An analysis of the age ranges in the more than 585 dates from East Texas archaeological sites indicate that most pertain to prehistoric and protohistoric Caddoan Indian occupations, particularly the Early (A.D. 1000-1200) and Middle Caddoan (A.D. 1200-1400) periods when prehistoric Caddoan settlements were widely distributed throughout the region.
Highlights
More than 585 radiocarbon and oxidizable carbon ratio (OCR) dates have been obtained from archaeological sites in East Texas in the last 40 years or so
This paper presents a second compilation of recently obtained radiocarbon and oxidizable carbon ratio dates obtained from archaeological sites in East Texas
This is a large and! important chronological data base on prehistoric and historic Native American occupations in the region, but it has been a data base difficult to use because much of the information on the dates, ud the archaeological sites from which the dates were obtained, hao; not been widely accessible until now. fn this paper, I present a compendium of some 61 newly available radiocarbon and OCR dates from East Texas (Tables 1 and 2); previously, Perttula ( 1998a) published in Radiocarbon a compilation of 526 radiocarbon and OCR dates that was current through July 1, 1997
Summary
More than 585 radiocarbon and oxidizable carbon ratio (OCR) dates have been obtained from archaeological sites in East Texas in the last 40 years or so (the OCR dates have only been obtained since 1996, ) The great majority of the East Texas radiocarbon dates have been obtained from Late Archaic, Woodland, and Formative-Late Caddoan period sites (Figure 1). Using calibrated ages and mid-points of 1-sigma age nrnges, but looking at 25 year intervals, there are interesting fluctuations in tlrle number of radiocarbon dates for the Caddoan period sites in East Texas (Figure 4). The 25 year intervals between AD. 12011225 and A.D. 1351-1375--the early and ate parts of the MiddleCaddoan period--have the most radiocarbon dates, followed by the intervals between A.D. 1226- 1250 and A.D. 1326-1350
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