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Warm tropical sea surface temperatures in the Late Cretaceous and Eocene epochs
New data from exceptionally well preserved foraminifer shells extracted from impermeable clay-rich sediments indicate that for the intervals studied, tropical sea surface temperatures were at least 28–32 °C, more in line with the understanding of the geographical distributions of temperature-sensitive fossil organisms and the results of climate models with increased CO2 levels.
Structural evolution of southern coastal Tanzania since the Jurassic
Earliest Archaeological Evidence of Persistent Hominin Carnivory
Three large well-preserved zooarchaeological assemblages from Kanjera South, Kenya are detailed, providing the earliest archaeological evidence of sustained hominin involvement with fleshed animal remains (i.e., persistent carnivory), a foraging adaptation central to many models of hom inin evolution.
Raw material quality and Oldowan hominin toolstone preferences: evidence from Kanjera South, Kenya
Oldowan behavior and raw material transport: perspectives from the Kanjera Formation
Small Mid-Pleistocene Hominin Associated with East African Acheulean Technology
- R. Potts, A. Behrensmeyer, A. Deino, P. Ditchfield, Jennifer Hayes Clark
- Environmental Science, GeographyScience
- 2 July 2004
Although the cranium represents possibly the smallest adult or near-adult known between 1.7 and 0.5 Ma, it retains features observed in larger Homo erectus individuals, yet shows a distinct suite of traits indicative of wide population variation in the hominins of this period.
High northern palaeolatitude Jurassic-Cretaceous palaeotemperature variation: new data from Kong Karls Land, Svalbard
- P. Ditchfield
- Environmental Science, Geography
- 1 May 1997
Old stones' song: use-wear experiments and analysis of the Oldowan quartz and quartzite assemblage from Kanjera South (Kenya).
Palaeoceanographic events in the Middle Cenomanian of Northwest Europe
Six rhythmic (chalk/marl) mid-Cenomanian sections have been studied: Culver Cliff, Southerham, Folkestone and Cap Blanc Nez (Anglo-Pads Basin); Speeton, South Ferriby (Cleveland Basin, UK).…
Oldest Evidence of Toolmaking Hominins in a Grassland-Dominated Ecosystem
These data demonstrate that grassland-dominated ecosystems did in fact exist during the Plio-Pleistocene, and that early Homo was active in open settings, and indicates that by 2.0 Ma hominins, almost certainly of the genus Homo, used a broad spectrum of habitats in East Africa, from open grassland to riparian forest.