Mb Roberts

Excavation of the Lower Palaeolithic Site at Amey's Eartham Pit, Boxgrove, West Sussex: A Preliminary Report

The acheulian site at Boxgrove contains one of the most extensive areas of in situ fauna and flintwork yet discovered in Britain. This material is found in a complex sequence of sediments which represent depositional conditions from a 42 m sea level rise to the onset of a full periglacial climate. Excavation of the archaeological horizon has been accompanied by a programme of multidisciplinary research examining site formation processes, palaeolandscape and palaeoecological development, using sedimentological and environmental reconstruction techniques. Dating of the site is tentative as no absolute dates are available at present. However, comparative analysis with other British sites would suggest a position for the Boxgrove sequence within the Middle Pleistocene. The archaeological horizon is interpreted as being deposited towards the latter part of an interglacial or an interstadial period.

The chronology, palaeogeography and archaeological significance of the marine quaternary record of the West Sussex coastal plain, Southern England, U.K.

Abstract The Quaternary sediments of the West Sussex Coastal Plain have produced a wide range of floral, faunal and archaeological remains. These sediments consist of marine sands and gravels exhibiting transgressive and regressive trends which occur from present day sea-level to c. +43.0 m O.D. and are overlain by terrestrial silts and cold climate periglacial sediments. At the present day coastline, channel fill deposits occur below modern beach levels. New field observations, coupled with a re-investigation of old sites and literature, suggest that five discrete high stands of sea-level may be preserved in the area of the West Sussex Coastal Plain. Age estimates for these deposits suggest that they span large parts of the Middle and Upper Pleistocene (Oxygen Isotope Stages 13 to 5). Conformable relationships between many of the marine and terrestrial sediments suggest that the potential exists within the area to correlate the marine and terrestrial Quaternary stratigraphic records. In addition sediments associated with two of these high sea-level stands are associated with extensive buried landsurfaces covering large areas of the coastal plain. At some locations these intact landsurfaces are associated with evidence for human activity and represent stratigraphic and cultural resources of international importance.

Two hominin incisor teeth from the middle Pleistocene site of Boxgrove, Sussex, England.

In 1995-1996 two isolated hominin lower incisors were found at the middle Pleistocene site of Boxgrove in England, with Lower Palaeolithic archaeology. Boxgrove 2 is a permanent lower right central incisor and Boxgrove 3 a permanent lower left lateral incisor. They were found separately, but close to one another and appear to belong to the same individual. The Boxgrove 1 tibia discovered in 1993 came from a different stratigraphic context and is thus believed to represent a different individual. This paper describes the morphology of the incisors, which is similar to other middle Pleistocene hominin specimens and, as with the tibia, suggests that they could be assigned to Homo heidelbergensis (recognising that the taxonomic status of this species is still a matter of debate). The incisors show substantial attrition associated with secondary dentine deposition in the pulp chamber and clearly represent an adult. They also show extensive patterns of non-masticatory scratches on the labial surfaces of both crown and root, including some marks which may have been made postmortem. The roots were exposed in life on their labial sides by a large dehiscence, extending almost to the root apex. This is demonstrated by deposits of calculus, polishing, and scratching on the exposed surfaces. The dehiscence may have been caused by repeated trauma to the gingivae or remodelling of the tooth-supporting tissues in response to large forces applied to the front of the dentition.

Late Middle Pleistocene deposits at Norton Farm on the West Sussex coastal plain, southern England

The coastal plain of West Sussex, southern England, is internationally important because of the sequence of discrete high-sea-level events preserved at Various elevations across it. New evidence is presented from a site at Norton Farm, near Chichester, on the Lower Coastal Plain, where Pleistocene marine sands, fining upwards into silts, occur between 5.3 m and 9.1 m OD. The sequence reflects a regressive tendency at the transition from an interglacial to a cold stage. The marine sands have yielded foraminifera, ostracods and molluscs that indicate a declining marine influence through the sequence, culminating in a tidal mudflat, strongly weathered in places. Cool-climate foraminifera (including Elphidium clavatum, Cassidulina reniformis and Elphidium albiumbilicatum) and ostracods have been recovered from the marine sands. Some species with an apparent preference for warmer water conditions, however, are also present. Freshwater taxa washed into the terminal marine sediments include some cold climate indicators, such as Pisidium stewarti and P. obtusale lapponicum. Additional evidence for cool climatic conditions during the deposition of the upper part of the marine sequence is provided by the lack of tree taxa in the pollen record and by features of the micromorphology. The marine sediments probably began accumulating during OIS 7, a conclusion based on their elevation, on amino acid ratios from shells, but especially on vertebrate evidence, particularly the presence of a small form of horse, together with a large, distinctive, form of northern vole (Microtus oeconomus). The occurrence of cool climate indicators in these marine sediments may demonstrate a lag between the climatic deterioration and the expected glacio-eustatic fall in relative sea-level. This evidence appears to support the conclusions drawn from the study of coral terraces in Barbados. Such a scenario would provide the conditions necessary for the emplacement of the large erratic boulders reported from the Lower Coastal Plain of West Sussex. Copyright (C) 2000 John Wiley & Sons, Ltd.

Boxgrove, West Sussex : Rescue excavations of a lower Palaeolithic landsurface (Boxgrove project B, 1989-91)

In 1988 an area of 12,000 m 2 in Quarry 2 at Boxgrove, West Sussex, was identified as being under threat front gravel and sand extraction. It was decided to sample the threatened area in 1989 with a series of 6 m 2 test pits. The results of this survey identified two areas that merited further investigation, and area excavations were carried out at Quarry 2/C and Quarry 2/D in 1990 and 1991 respectively. These concentrated on the main Pleistocene landsurface (Unit 4c) and revealed spreads of knapping debris associated with the production of flint handaxes. Two test pits and area Q2/C produced handaxes, over 90% of which had tranchet sharpening at the distal end. A small amount of core reduction and only a few flake tools were found: these were all from Quarry 2/C. Faunal remains were located in the northern part of the excavations where Unit 4c had a calcareous cover. In Quarry 2/C the bones of C. elaphus and Bison sp. exhibited traces of human modification. The project employed two methods of artefact retrieval: direct excavation in metre squares and bulk sieving of units within them. Comparison of the results from these methods suggests that, when on-site time is limited, the integration of these methods is a valid technique in both qualitative and quantitative terms for data recovery. The excavated areas are interpreted as a tool-sharpening and butchery site that may have been a fixed and known locale in the landscape (Q2/C), and a location on the periphery of an area of intensive knapping reduction (Q2/D). Sedimentological and microfaunal analyses demonstrate that Unit 4c was formed as a soil in the top of a marine-lagoonal silt, the pedogenic processes being similar to those observed after draining Dutch polder lakes. The palaeoenvironment is interpreted as an area of open grassland with some shrub and bush vegetation. In places the surface of the soil supported small ephemeral pools and flashes. This area of grassland is seen as a corridor for herds of ungulates moving east and west between the sea to the south and the relict cliff and wooded downland block to the north. Within this corridor these herds were preyed upon by various carnivores, and hominids. The temperate sediments at Boxgrove were deposited in the later part of the Cromerian Complex and immediately pre-date the Anglian Cold Stage; they are therefore around 500,000 years old. The archaeological material from these and overlying cold stage deposits is broadly contemporary with that at High Lodge, Suffolk and Waverley Wood, Warwickshire.

The Valdoe: Archaeology of a Locality within the Boxgrove Palaeolandscape, West Sussex

A programme of archaeological assessment, funded through the Aggregates Levy Sustainability Fund, was undertaken at the Valdoe Quarry in West Sussex ahead of a renewed and final stage of gravel extraction at the site. This paper gives an account of the evidence for human activity recovered in the course of this work. The analysis demonstrates that the Valdoe Quarry contained archaeology relating to the transport and modification of bifaces. These signatures formed part of wider patterns of land-use operated by the same hominin groups found at Boxgrove, within a single, developing palaeolandscape. It is concluded that further activity sites remain to be discovered within the general environs of the Valdoe and the parish of East Lavant where historically there have been surface finds of bifaces.