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Prehistoric Cold Storage on the Snake River Plain: Archaeological Investigations at Bobcat Cave. Lael Suzann Henrikson. Archaeological Survey of Idaho, Monographs in Idaho Archaeology and Ethnology, No. 1, Idaho State Historical Society, 1996, v + 38 pp., 26 figs., 3 tables, $10.00 (paper).

The source direction of obsidian artifacts from archaeological contexts in Drews Valley, located on the northwestern Great Basin perimeter, provides evidence for an east-to-west shift in procurement or interaction spheres from Middle to Late Holocene times. For Elko and earlier periods, sources located to the northeast, in Oregon 's Chewaucan Basin, are predominant, and most of the remaining exotic obsidian is from other Great Basin sources, primarily from the Goose Lake basin to the southeast. Within the last ca. 1,300 years, sources on the Modoc Plateau to the southwest predominate, while sources in the Chewaucan and other easterly basins are rare. This shift, precipitated by a combination of factors that may have included environmental stress, conflict, and changing economic opportunities, may mark the initiation of the ethnographic pattern.

In this paper, the age and context of two distinctive shell beads recently found at the DJ Ranch site in south-central Oregon are discussed. These beads, which almost certainly originated on the southern California coast, clearly indicate the existence of extensive trade networks during the Middle Holocene. Such beads have also been identified as evidence of an early cultural interaction sphere linking the southern Channel Islands and adjacent mainland coast with peoples of the western Great Basin. The examples from the DJ Ranch site significantly extend the spatial distribution of such beads. Archaeologists working throughout the Great Basin and California should be aware of these distinctive beads and their potential implications.

The Paisley Cave archeological site in the Northern Great Basin has provided a rich archaeological record from 13,000 to 6000 cal yr BP, including abundant mammalian coprolites preserved in a well-dated stratigraphy. Here we analyze and contrast pollen from within coprolites and pollen in associated sediments to examine vegetation history and assess whether coprolite pollen provides unique information with respect to the coprolite producer, such as the use of specific habitats, foods, or water sources. We found that the dissimilarity of pollen assemblages between coprolites and associated sediments was greater than the serial dissimilarity between stratigraphically adjacent samples within either group. Serial dissimilarity within types was not greater for coprolites than sediments, as would be expected if there were unique pollen signatures derived from the short period (1-2 days) represented by each coprolite. Compared with sediment pollen assemblages, the coprolites had higher abundances of lighter pollen types, and some individual samples were high in wetland taxa (especially Typha). Our results are consistent with coprolite pollen representing short time periods collected as a mammal moves on the landscape, whereas sediment pollen reflects longer time periods and more regional vegetation indicators. [ABSTRACT FROM AUTHOR]

The dating of the Pinto Period has long been a major issue in Mojave Desert prehistory. Competitive chronologies place it within two significantly different time intervals, and lead to quite different interpretations of the ancient desert lifeway. Projectile points from radiocarbon-dated strata at the Rogers Ridge site support the case for an early occupation dating between 6,000 and 6,400 B.P. This paper presents and discusses the implications of the evidence from Rogers Ridge.

This report documents the excavation of the cave, describes the collection, and serves as the final report on the project. The collection and notes are housed at UCLA under accession number 365.

Paisley 5 Mile Point Caves, Oregon, U.S.A. offer a unique perspective on Native Americans living in the Great Basin during the Younger Dryas. The cave sediments are mixed with abundant, disaggregated, packrat coprolites. We developed a technique for processing these packrat coprolites. Using this technique, this study analyses fifteen packrat coprolite samples separated from sediments collected from the sidewall of a test unit within Paisley Caves #2. The results were then used to create a paleoenvironmental reconstruction of the region. This reconstruction was then compared to a previous reconstruction based on the fossil pollen in the sediment from the same site. The reconstructions were similar. However, we found that the packrat coprolites were prone to dietary biases that could mask the true paleovegetation of the area. By studying the differences and similarities of these two sample sets, we obtained a better understanding of how each set reflects the local environment. [ABSTRACT FROM AUTHOR]

This study describes the results of palynological, macrobotanical, and microfaunal investigations of 19 coprolites from the Paisley Five Mile Point Caves locality (35LK3400) situated in south-central Oregon, USA. This collection represents two discreet chronological phases (ca. 2200 and 9600–10800 radiocarbon years before present (RCYBP)) and suggests the use of a wide array of faunal and floral resources found adjacent to the cave complex. Here we compare macrofossils, animal hair and pollen recovered from these samples with regional ethnographic and historic data to infer probable exploitation of dietary resources by the inhabitants of the rockshelter. Our results suggest that the residents of the Paisley Caves during the late Pleistocene and early Holocene transition followed subsistence regimes heavily reliant on lagomorphs and dryland plant resources similar to those employed by later Native groups. [ABSTRACT FROM AUTHOR]