Laetolia

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Laetolia
Temporal range: Pliocene, 3.63–3.85  Ma
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Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Strepsirrhini
Family: Galagidae
Genus: Laetolia
Harrison, 2011
Species:
L. sadimanensis
Binomial name
Laetolia sadimanensis
(Walker, 1987)

Laetolia is an extinct genus of galagid primates from the Pliocene of Tanzania. It contains one species, L. sadimanensis, which is known from several dentary fragments discovered in the Upper Laetolil Beds of Laetoli. It was originally described in 1987 as a species of Galago , but a separate genus was erected for it in 2011. [1]

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<span class="mw-page-title-main">Treeshrew</span> Order of mammals

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<span class="mw-page-title-main">Ape</span> Branch of primates

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<i>Australopithecus afarensis</i> Extinct hominid from the Pliocene of East Africa

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Laetoli is a pre-historic site located in Enduleni ward of Ngorongoro District in Arusha Region, Tanzania. The site is dated to the Plio-Pleistocene and famous for its Hominina footprints, preserved in volcanic ash. The site of the Laetoli footprints is located 45 km south of Olduvai gorge. The location and tracks were discovered by archaeologist Mary Leakey and her team in 1976, and were excavated by 1978. Based on analysis of the footfall impressions "The Laetoli Footprints" provided convincing evidence for the theory of bipedalism in Pliocene Hominina and received significant recognition by scientists and the public. Since 1998, paleontological expeditions have continued under the leadership of Amandus Kwekason of the National Museum of Tanzania and Terry Harrison of New York University, leading to the recovery of more than a dozen new Hominina finds, as well as a comprehensive reconstruction of the paleoecology. The site is a registered National Historic Sites of Tanzania.

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Paranthropus aethiopicus is an extinct species of robust australopithecine from the Late Pliocene to Early Pleistocene of East Africa about 2.7–2.3 million years ago. However, it is much debated whether or not Paranthropus is an invalid grouping and is synonymous with Australopithecus, so the species is also often classified as Australopithecus aethiopicus. Whatever the case, it is considered to have been the ancestor of the much more robust P. boisei. It is debated if P. aethiopicus should be subsumed under P. boisei, and the terms P. boisei sensu lato and P. boisei sensu stricto can be used to respectively include and exclude P. aethiopicus from P. boisei.

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The kipunji, also known as the highland mangabey, is a species of Old World monkey that lives in the highland forests of Tanzania. The kipunji has a unique call, described as a 'honk-bark', which distinguishes it from its relatives, the grey-cheeked mangabey and the black crested mangabey, whose calls are described as 'whoop-gobbles'.

<span class="mw-page-title-main">Western hoolock gibbon</span> Species of ape

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Ceratotherium mauritanicum is a species of fossil African rhinoceros found in the Late Pliocene to earliest Holocene of Morocco, Tunisia, and Algeria. Slightly older fossils from the Pliocene of eastern Africa were also proposed to belong to this species, but it has been considered to belong to a somewhat more primitive species, Ceratotherium efficax. A 2020 study considers C. efficax to be the same species as C. mauritanicum, however.

<i>Stigmochelys</i> Genus of turtles

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<span class="mw-page-title-main">Taxonomy of lemurs</span> Science of describing species and defining the evolutionary relationships between taxa of lemurs

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Serengetilagus is a genus of lagomorph in the family Leporidae. It lived in the Pliocene of Kenya and Tanzania and the Late Miocene of Chad. Serengetilagus is the best-represented taxon from Laetoli, with approximately 34 percent of fossils in the Laetolil Beds attributed to this genus. Additional specimens from Angola, Morocco and the Ukraine may also belong to this genus. It had a number of specific features unknown in other lagomorphs, such as a "missing" mesoflexid on its third premolar.

Ultrapithecus is an extinct genus of oldfieldthomasiid notoungulate that lived during the Middle Eocene of what is now Argentina.

References

  1. Harrison, T. (2011). "Galagidae (Lorisoidea, Primates)". Paleontology and Geology of Laetoli: Human Evolution in Context. Vertebrate Paleobiology and Paleoanthropology: 75–81. doi:10.1007/978-90-481-9962-4_5. ISBN   978-90-481-9961-7.