The Toba eruption was a supervolcanic eruption that occurred about 74,000 years ago during the Late Pleistocene at the site of present-day Lake Toba in Sumatra, Indonesia. It was the last in a series of at least four caldera-forming eruptions at this location, with the earlier known caldera having formed around 1.2 million years ago. This last eruption had an estimated VEI of 8, making it the largest-known explosive volcanic eruption in the Quaternary, and one of the largest known explosive eruptions in the Earth's history.
Wilton is a term archaeologists use to generalize archaeological sites and cultures that share similar stone and non-stone technology dating from 8,000-4,000 years ago. Archaeologists often refer to Wilton as a technocomplex, or Industry. Technological industries are defined by a common tradition of stone tool assemblages, but these technological industries extend to common cultural behaviors. As such, archaeologists use these industries to define a discrete cultural taxonomy. However, technological industries have the potential to generalize different cultures and communities at regional scales that, in more local settings, are distinguishable in both technology and cultural behaviors.
Stegodon is an extinct genus of proboscidean, related to elephants. It was originally assigned to the family Elephantidae along with modern elephants but is now placed in the extinct family Stegodontidae. Like elephants, Stegodon had teeth with plate-like lophs that are different from those of more primitive proboscideans like gomphotheres and mammutids. Fossils of the genus are known from Africa and across much of Asia, as far southeast as Timor. The oldest fossils of the genus are found in Late Miocene strata in Asia, likely originating from the more archaic Stegolophodon, subsequently migrating into Africa. While the genus became extinct in Africa during the Pliocene, Stegodon persisted in South, Southeast and Eastern Asia into the Late Pleistocene.
The Last Glacial Maximum (LGM), also referred to as the Last Glacial Coldest Period, was the most recent time during the Last Glacial Period where ice sheets were at their greatest extent 26,000 and 20,000 years ago. Ice sheets covered much of Northern North America, Northern Europe, and Asia and profoundly affected Earth's climate by causing a major expansion of deserts, along with a large drop in sea levels.
The rock hyrax, also called dassie, Cape hyrax, rock rabbit, and coney, is a medium-sized terrestrial mammal native to Africa and the Middle East. Commonly referred to in South Africa as the dassie, it is one of the five living species of the order Hyracoidea, and the only one in the genus Procavia. Rock hyraxes weigh 4–5 kg (8.8–11.0 lb) and have short ears.
The Late Pleistocene is an unofficial age in the international geologic timescale in chronostratigraphy, also known as the Upper Pleistocene from a stratigraphic perspective. It is intended to be the fourth division of the Pleistocene Epoch within the ongoing Quaternary Period. It is currently defined as the time between c. 129,000 and c. 11,700 years ago. The late Pleistocene equates to the proposed Tarantian Age of the geologic time scale, preceded by the officially ratified Chibanian. The beginning of the Late Pleistocene is the transition between the end of the Penultimate Glacial Period and the beginning of the Last Interglacial around 130,000 years ago. The Late Pleistocene ends with the termination of the Younger Dryas, some 11,700 years ago when the Holocene Epoch began.
Dung middens, also known as dung hills, are piles of dung that mammals periodically return to and build up. They are used as a form of territorial marker. A range of animals are known to use them including steenbok, hyrax, and rhinoceros. Other animals are attracted to middens for a variety of purposes, including finding food and locating mates. Some species, such as the dung beetle genus Dicranocara of the Richtersveld in South western Africa spend their whole lifecycle in close association with dung middens. Dung middens are also used in the field of paleobotany, which relies on the fact that each ecosystem is characterized by certain plants, which in turn act as a proxy for climate. Dung middens are useful as they often contain pollen which means fossilized dung middens can be used in paleobotany to learn about past climates.
In climatology, the 8.2 kiloyear event was a sudden decrease in global temperatures that occurred approximately 8,200 years before the present, or c. 6,200 BC, and which lasted for the next two to four centuries. It defines the start of the Northgrippian age in the Holocene epoch. The cooling was significantly less pronounced than during the Younger Dryas cold period that preceded the beginning of the Holocene. During the event, atmospheric methane concentration decreased by 80 ppb, an emission reduction of 15%, by cooling and drying at a hemispheric scale.
The Antarctic Cold Reversal (ACR) was a climatic event of intense atmospheric and oceanic cooling across the southern hemisphere (>40°S) between 14,700 and 13,000 years before present (BP) that interrupted the most recent deglacial climate warming. This cooling event was initially well noted in Antarctic ice core records. Soon after, evidence from sediment cores and glacial advances from land masses and Oceanic sectors south of 40°S expanded the region of this climate cooling event. The ACR illustrates the complexity of the climate changes at the transition from the Pleistocene to the Holocene Epochs.
Hyraceum is the petrified and rock-like excrement composed of both urine and feces of the rock hyrax and closely related species.
Howiesons Poort is a technological and cultural period characterized by material evidence with shared design features found in South Africa, Lesotho, and Namibia. It was named after the Howieson's Poort Shelter archaeological site near Grahamstown in South Africa, where the first assemblage of these tools was discovered. Howiesons Poort is believed, based on chronological comparisons between many sites, to have started around 64.8 thousand years ago and ended around 59.5 thousand years ago. It is considered to be a technocomplex, or a cultural period in archaeology classified by distinct and specific technological materials. Howiesons Poort is notable for its relatively complex tools, technological innovations, and cultural objects evidencing symbolic expression. One site in particular, Sibudu Cave, provides one of the key reference sequences for Howiesons Poort. Howiesons Poort assemblages are primarily found at sites south of the Limpopo River.
Katherine Jane Willis, Baroness Willis of Summertown, is a British biologist, academic and life peer, who studies the relationship between long-term ecosystem dynamics and environmental change. She is Professor of Biodiversity in the Department of Biology and Pro-Vice-Chancellor at the University of Oxford, and an adjunct professor in biology at the University of Bergen. In 2018 she was elected Principal of St Edmund Hall, and took up the position from 1 October. She held the Tasso Leventis Chair of Biodiversity at Oxford and was founding Director, now Associate Director, of the Biodiversity Institute Oxford. Willis was Director of Science at the Royal Botanic Gardens, Kew from 2013 to 2018. Her nomination by the House of Lords Appointments Commission as a crossbench life peer was announced on 17 May 2022.
Julia Anne Lee-Thorp, is a South African archaeologist and academic. She is Head of the Stable Light Isotope Laboratory and Professor of Archaeological Science and Bioarchaeology at the University of Oxford. Lee-Thorp is most well known for her work on dietary ecology and human origins, using stable isotope chemistry to study fossil bones and teeth.
Brian A. Stewart is an anthropological archaeologist, assistant professor of anthropology, and curator of Paleolithic archaeology at the University of Michigan Museum of Anthropological Archaeology. He is also an honorary research fellow at the Rock Art Institute of the University of the Witwatersrand. His research focuses primarily on prehistoric hunter-gatherer societies of Africa, especially southern Africa. He is particularly interested in determining when, how, and where humans developed adaptive plasticity. Brian Stewart has directed excavations of many sites, mostly in Lesotho and South Africa, among the most notable are Spitzkloof, Sehonghong, and Melikane.
Nicki Whitehouse is a British archaeologist and Environmental archaeologist. She is a Professor in Archaeological Science at the University of Glasgow.
Zenobia Jacobs is a South African-born archaeologist and earth scientist specialising in geochronology. She is a professor at the University of Wollongong, Australia.
Marco Peresani is an Italian prehistoric archaeologist, anthropologist, university professor and scientific communicator.
Heinz Wanner is a Swiss geographer and climate researcher. He is a professor emeritus and works at the Oeschger Centre for Climate Change Research of the University of Bern.
A rock hyrax midden is a stratified accumulation of fecal pellets and a brown amber-like a urinary product known as hyraceum excreted by the rock hyrax and closely related species.
Colin Kerr Ballantyne is a Scottish geomorphologist, geologist, and physical geographer.
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