Lapita Pottery and Ancient Fijian Pottery Designs

The Caution Bay archaeological project on the south coast of mainland Papua New Guinea has excavated 122 sites over a 9 km 2 area. Lapita ceramics appear at a number of sites at c. 2900 cal. BP. Here we present the results of excavations at Moiapu 3, a site that helps define the end of the dentate-stamped Lapita phase of this region. It is suggested that the decline and ultimate cessation of dentate stamping related to a loss of symbolism during a period of major socioeconomic readjustment and innovation.

Currently the earliest evidence for dog dispersal into the Greater Australian region and surrounds is found in Australia (Madura Cave 3210–3361 cal BP), New Ireland (Kamgot, c. 3000–3300 cal BP) and Timor-Leste (Matja Kuru 2, 2886–3068 cal BP). Previously, the earliest published dog remains for the large continental island of New Guinea was from Edubu 1 (2314–2700 cal BP) in Caution Bay, south coast of mainland PNG. Here we report on a dog mandible from Moiapu 1, also in Caution Bay. Although the mandible could not be directly dated, good chronostratigraphic resolution indicates that it confidently dates to between 2573 and 2702 cal BP (95% probability). It was found deeply buried in association with Late Lapita cultural materials, and is currently the earliest known dog remain from New Guinea. Biometric measurements on a small sample of archaeological and modern dog remains from the broader region support previously published models (based on genetic results) of multiple dog dispersals into the Pacific region.

Insights into Austronesian environmental impacts on the New Guinea mainland are negligible, as until now no conclusive evidence for Lapita settlement of mainland New Guinea had been found (e.g. Lilley 2008:79) and the period of concern reveals 'very little correlation with [anthropogenic] environmental change' (Hope and Haberle 2005:548). The recent excavation of Lapita and post-Lapita sites dating between 2900 and 2000 years ago at Caution Bay immediately northwest of Port Moresby, southern Papua New Guinea, negates the first conclusion of a purported absence of Lapita, and provides scope to challenge the second (McNiven et al. 2011). For 40 years, the accepted view has been that Austronesian colonisation of the southern Papuan coast took place around 2000 years ago by maritime peoples possessing a pottery tradition similar to but post-dating Lapita (David et al. in press). Ethnographically, the descendants of these peoples in the Port Moresby region practised a mixed economy of marine fishing and shellfishing, along with wallaby hunting across grasslands and savannah vegetation maintained by firing. While the antiquity of this process of anthropogenic landscape modification is unknown, it is considered to be no more than 2000 years ago. Here, we extend the known antiquity of mixed economic practices and possible anthropogenic landscape modification in the Port Moresby region using recent excavation results from Caution Bay, focusing on Edubu 1 site, dating from <2350 to 2650 cal BP. Our key aim is to establish a historical framework for pre-2000 cal BP human landscape engagements and transformations along the southern coast of mainland Papua New Guinea.