U-Th dating, taphonomy, and taxonomy of shell middens at Klasies River main site indicate stable and systematic coastal exploitation by MIS 5c-d

The archaeological record, particularly of shellfish, from the Klasies River main site (KRM) is important in understanding the fluctuating nature of coastal occupational patterns and changing coastal ecologies. In this paper, we provide new uranium–thorium (U-Th) dates for one of the earlier phases of coastal exploitation at KRM, and the microstratigraphic analyses generate novel information about the taphonomy of shell-bearing deposits from the Later Stone Age (LSA) to the MSA I period that, in turn, provide a broader context for middening at the site. A wide range of syndepositional taphonomic processes related to human activities and post-depositional effects include burning, fragmentation and compaction, chemical alteration, and cementation. Despite such issues influencing recovery, shellfish data are informative and are presented from three layers of the Witness Baulk: Shell Midden One (SMONE), Black Occupational Soils (BOS), and Silty Black Soils (SBLS). These coarse shell midden deposits exhibit visible decalcification coupled with cementation with secondary carbonate formation in association with conditions of high moisture and soft sedimentation deformation of the underlying sediments of SBLS. This stratigraphy section is chronologically anchored for the first time using U-Th dating of speleothems associated with a hiatus after the deposition of BOS. The three ages, 110,060 ± 1,100, 109,800 ± 970, and 106,000 ± 2,100 years, place the BOS layer as the base of the SASL sub-member at over 110 ka, making the underlying middens from the LBS member even older. The zooarchaeological analyses of the three layers indicate coastal ecological changes from more sheltered conditions prior to the hiatus, with the exploitation of alikreukel and brown mussels predominating. Before 110 ka, in BOS and SBLS, more exposed coastal conditions occurred, and the diversity of exploited shellfish increased. SMONE and BOS are associated with MSA II/Mossel Bay lower lithic technology and SBLS with MSA I technology, indicating asynchronous coastal ecological and technological changes. The MIS 5c-d evidence for early coastal occupation at KRM provides details on the period during which coastal occupation became stable and systematic on the South African coast and puts the KRM amongst the handful of sites with shell-bearing deposits, occurring prior to 110 ka in South Africa.publishedVersio

Pleistocene Homo and the updated Stone Age sequence of South Africa

We provide a brief overview of how the rich South African Pleistocene Homo fossil record correlates with the recently revised Stone Age sequence. The overview and correlation of the data is intended to highlight gaps in the record and/or our understanding thereof, and to stimulate interdisciplinary research and debate on the Homo fossil and archaeological records spanning the Pleistocene. As an updated resource we present a complete inventory of known Pleistocene fossil material assigned to the genus Homo, and, where possible, its association with archaeological material. We demonstrate that (1) anatomical changes are not necessarily paralleled by changes in the archaeological sequence currently based on a range of technocomplexes, (2) the early Homo record of South Africa probably differs from that of East Africa, (3) mid-Pleistocene Homo might be associated with the Earlier to Middle Stone Age transitional phase and (4) the fossil record associated with the Middle Stone Age has wide anatomical variation. Also, hiatuses in the fossil record, such as that associated with the appearance of early Khoe-San-like populations, do not show concurrent hiatuses in the archaeological record. Thus, for a broader understanding of the demographic history of South Africa during the Pleistocene, both sources of information should be considered in tandem.publishedVersio

The middle stone age at Klasies River, South Africa

Thesis (D Phil)--Stellenbosch University, 2000.ENGLISH ABSTRACT: The Late Pleistocene, Middle Stone Age artefact sequence at the Klasies River main site, was studied to establish what information this held for inferences on the emergence of symbolic thought and communication. The approach adopted was to complement traditional typological analysis by a technological study of artefact production within the framework of the chafne opératoire. The results show that technology was aimed at producing preformed blanks. In the choice of materials, the technique and method of blank production and the retouch of blanks, arbitrary or stylistic choices were made. Changes in stylistic conventions can be documented through the sequence. Changing conventions in artefact production show that the lives of the people who made the artefacts were structured in a symbolic web. These results together with evidence from evolutionary biology, show that by at least 115 000 years ago, people were able to think and speak symbolically. This African archaeological evidence for the emergence of symbolism, a defining attribute of modem peoples, is much older than previously considered. KEYWORDS: Klasies River, Middle Stone Age, technology, symbolic communication, human evolution.AFRIKAANSE OPSOMMING: Die Latere Pleistoseen, Middel Steentydperk artefakte by Klasiesrivier vindplaas is bestudeer om te bepaal watter kennis ingewin kan word aangaande die ontstaan van simboliese denkwyse en kommunikasie. Die benadering wat gevolg is, was om tradisionele tipologiese analise te komplementeer met 'n tegnologiese studie van artefak produksie binne die raamwerk van die chafne opératoire. Die resultate demonstreer dat tegnologie gemik was op die produksie van voorafgevormde skilfers. Die keuse van roumateriaal, die tegniek en metode van produksie en die herafwerk van skilfers is gelei deur arbitrêre stilistiese keuses. Veranderinge in hierdie konvensies kan gedokumenteer word deur die hele sekwens. Hierdie verandering is tipies van mense wie se lewens gestruktureer word deur 'n simboliese web. Dié resultate, en dié van evolusionêre biologie, dui daarop dat mense reeds teen 115 000 jaar gelede simboliese denke en spraak magtig was. Hierdie bewyse vanuit Afrika vir die ontstaan van simboliese gedrag is veel vroeër as vantevore gereken. SLEUTEL WOORDE: Klasiesrivier, Middel Steentydperk, tegnologie, simboliese kommunikasie, menslike evolusie

The Howiesons Port at Klasies River : from artefacts to cognition

One copy microfiche.Thesis (M.A.) -- University of Stellenbosch, 1997.Full text to be digitised and attached to bibliographic record

The Howiesons Port at Klasies River : from artefacts to cognition

One copy microfiche.Thesis (M.A.) -- University of Stellenbosch, 1997.Full text to be digitised and attached to bibliographic record

Pleistocene Homo and the updated Stone Age sequence of South Africa

We provide a brief overview of how the rich South African Pleistocene Homo fossil record correlates with the recently revised Stone Age sequence. The overview and correlation of the data is intended to highlight gaps in the record and/or our understanding thereof, and to stimulate interdisciplinary research and debate on the Homo fossil and archaeological records spanning the Pleistocene. As an updated resource we present a complete inventory of known Pleistocene fossil material assigned to the genus Homo, and, where possible, its association with archaeological material. We demonstrate that (1) anatomical changes are not necessarily paralleled by changes in the archaeological sequence currently based on a range of technocomplexes, (2) the early Homo record of South Africa probably differs from that of East Africa, (3) mid-Pleistocene Homo might be associated with the Earlier to Middle Stone Age transitional phase and (4) the fossil record associated with the Middle Stone Age has wide anatomical variation. Also, hiatuses in the fossil record, such as that associated with the appearance of early Khoe-San-like populations, do not show concurrent hiatuses in the archaeological record. Thus, for a broader understanding of the demographic history of South Africa during the Pleistocene, both sources of information should be considered in tandem

The stratigraphy and formation of Middle Stone Age deposits in Cave 1B, Klasies River Main site, South Africa, with implications for the context, age, and cultural association of the KRM 41815/SAM-AP 6222 human mandible

Cave 1B, in the Klasies River Main site complex (KRM), is best known for the recovery of the KRM 41815/SAM-AP 6222 human mandible. After initial skepticism over the modernity of this specimen, it is accepted that the mix of archaic and modern traits it displays is characteristic of early Homo sapiens individuals. Different authors have associated this specimen with the Middle Stone Age (MSA) I and II/Mossel Bay cultural phases, but the published data do not allow an unambiguous attribution. KRM 41815's frequent use in studies of the evolution of the human mandible, and its well-developed chin, makes clarifying its age and context important objectives. The field and micromorphology observations presented here provide greater insight into the stratigraphy and formation of the sequence exposed in the PP38 excavation. There are three major divisions: the basal Light Brown Sand (LBS) Member (not excavated), the Rubble Sand (RS) Member (MSA I), and the Shell and Sand Dark Carbonized (SASDC) Submember (MSA II). Cultural stratigraphy based on lithic artifacts remains the only way to make secure (but broad) temporal correlations with the rest of the site complex. This investigation shows that a range of anthropogenic, geogenic, and biogenic processes contributed to the deposition and post-depositional alteration of the identified microfacies. Short depositional hiatuses are reasonably common, and a significant hiatus was identified between the RS and SASDC. The impact of post-depositional processes on the RS is significant, with anthropogenic deposits poorly preserved. In comparison, the SASDC is dominated by hearths contained within deposits rich in reworked anthropogenic materials known as carbonized partings. Small shell disposal features are also present. The distribution of these anthropogenic features suggests continuity in the management of space throughout the MSA II occupations, from before 110 ka. New stratigraphic correlations indicate that KRM 41815 is unambiguously associated with the MSA I. Therefore, it predates 110 ka, with a lower age limit potentially in Marine Isotope Stage 6.publishedVersio

An analysis and environmental interpretations of wood charcoal from the Later Stone Age deposit at Klasies River cave 1, Tsitsikamma Coast

In this article, we present the results for an analysis of charcoal remains from Klasies River main site cave 1. The analysis was done to understand the environmental conditions of the Tsitsikamma Coast during the late Holocene, approximately 2300 cal BP. A high-resolution reflective light microscope (Olympus BX51) with up to 500X magnification was used to analyse the microanatomy of archaeological and comparative wood charcoal, as well as following standard Anthracology procedures. Common woody species from the contemporary Klasies River landscape along with many others from other parts of southern Africa were used to identify archaeological charcoal samples to species. The vascular structures of archaeological and contemporary woody species from Klasies River were also measured and compared so that wood Vulnerability Indices could be calculated. Two species, Protorhus longifolia and Hibiscus cf. tiliaceus, from the archaeological charcoal assemblage indicate that environmental conditions in the Tsitsikamma Coast are no longer suited for their growth. These species currently grow in the east coastal areas and minimally in the eastern highlands of southern Africa where they tolerate a warm climatic setting. Overall, the taxonomic results indicate that more than 80% of the 17 archaeological species identified here are adapted to year-round and summer rainfall conditions. This is in contrast with the present environmental setting at Klasies River that includes, predominantly, species that prefer year-round and winter rainfall with fewer summer rainfall adapted species. A comparison of the vascular structure of the archaeological woody species against that of contemporary species indicates that the archaeological Klasies River landscape received relatively higher rainfall levels in the Late Holocene than it does presently. We conclude that the Klasies River landscape, located in the year-round rainfall region of southern Africa, supported differing amounts of winter and summer rainfall-adapted woody vegetation through time. During the late Holocene, c. 2300 cal BP, environmental or climatic conditions were more favourable for summer rainfall-adapted woody species to thrive better than at present. The same woody vegetation was also less adapted to aridity than that found in the area today.publishedVersio

Shellfish exploitation during the Oakhurst at Klipdrift Cave, southern Cape, South Africa

Klipdrift Cave in the southern Cape, South Africa, provides new insights into shellfish harvesting during the Later Stone Age (14–9 ka) period associated with the Oakhurst techno-complex. Two shellfish species dominate: Turbo sarmaticus and Dinoplax gigas. An abrupt shift in the relative frequencies of these species occurs in the middle of the sequence with T. sarmaticus almost completely replacing D. gigas. The shift in dominant species is likely due to environmental change caused by fluctuating sea levels rather than change in sea surface temperatures. The shellfish assemblage shows that local coastal habitats at Klipdrift Cave were somewhat different from those of contemporaneous sites in the southern Cape. Although the shellfish specimens are smaller at Klipdrift Cave than those from Middle Stone Age localities such as Blombos Cave, there is no robust indication that larger human populations at Klipdrift Cave during the Oakhurst period might have caused this change in size. Environmental or ecological factors could have restricted shellfish growth rates as some experimental works have suggested, but this possibility also remains to be further explored