Laetolin.

Brit.

/lʌɪˈtəʊli/, U.S.

/laɪˈtoʊli/

Forms: 1900s– Laetoli, 1900s– Laetolil.

Origin: From a proper name. Etymon: proper name Laetoli.

Etymology: < Laetoli, the name of a site south of the Olduvai Gorge in Tanzania ( < Masai (regional) laetole, olaetole, masculine form corresponding to the more common feminine nkaetole, enkaetole crowned crane), where the deposits were identified in the 1930s and the footprints were found in 1976.The site was originally referred to as Laetolil ; this name was changed to Laetoli in 1979 on the request of the Tanzanian government (compare quot. 1979, although this is not universally adhered to); the earlier form has been retained as a variant in the phrase Laetolil Beds for the geological deposits. The origin of the final -l is unknown; it cannot be explained from a Masai form. It is unclear whether the place name existed beforehand or was coined by European geologists; it is apparently first mentioned in the source of quot. 1936. Hominid finds were made at the site in 1939, but it was referred to as Garusi in this context.

Geology and Palaeontology.

Used attributively with reference to a series of volcanic Pliocene deposits in northern Tanzania and their associated fossils, notably (in later use) three trails of footprints made by bipedal hominids and dated to 3.6 million years ago; esp. in Laetolil beds.

ΚΠ

1936 Ann. & Mag. Nat. Hist. 17 637 Kanjera and the Vogel River (Laetolil) Beds are also Middle Pleistocene.

1941 Geol. Mag. 78 182 The widely occurring surface limestone was seen resting directly on the Laetolil surface.

1954 Amer. Anthropologist 56 379 In the Laetolil beds of the Vogel river..a hominid maxillary fragment with two premolar teeth has been found.

1979 M. D. Leakey & R. H. Hay in Nature 22 Mar. 317/1 The name Laetoli will be used for the area, but the Pliocene deposits will continue to be known as the Laetolil Beds.

1992 Nat. Hist. Feb. 68/3 The bipedal Laetoli hominid had an apelike brain and was probably the common ancestor of modern hominids.

2003 B. A. Ogot My Footpr. Sands Time xii. 330 He suggested that Laetolil hominids..should be considered together with the Hadar material, because they comprise the oldest definitive evidence of the Hominidae.

2004 B. Olsen Sacred Places around World (ed. 2) 216 The Laetoli footprints prove conclusively that walking on two legs was well established before 3.6 million years ago.

This is a new entry (OED Third Edition, September 2011; most recently modified version published online March 2022).

单词	laetoli
释义	Laetolin. Brit. /lʌɪˈtəʊli/, U.S. /laɪˈtoʊli/ Forms: 1900s– Laetoli, 1900s– Laetolil. Origin: From a proper name. Etymon: proper name Laetoli. Etymology: < Laetoli, the name of a site south of the Olduvai Gorge in Tanzania ( < Masai (regional) laetole, olaetole, masculine form corresponding to the more common feminine nkaetole, enkaetole crowned crane), where the deposits were identified in the 1930s and the footprints were found in 1976.The site was originally referred to as Laetolil ; this name was changed to Laetoli in 1979 on the request of the Tanzanian government (compare quot. 1979, although this is not universally adhered to); the earlier form has been retained as a variant in the phrase Laetolil Beds for the geological deposits. The origin of the final -l is unknown; it cannot be explained from a Masai form. It is unclear whether the place name existed beforehand or was coined by European geologists; it is apparently first mentioned in the source of quot. 1936. Hominid finds were made at the site in 1939, but it was referred to as Garusi in this context. Geology and Palaeontology. Used attributively with reference to a series of volcanic Pliocene deposits in northern Tanzania and their associated fossils, notably (in later use) three trails of footprints made by bipedal hominids and dated to 3.6 million years ago; esp. in Laetolil beds. ΚΠ 1936 Ann. & Mag. Nat. Hist. 17 637 Kanjera and the Vogel River (Laetolil) Beds are also Middle Pleistocene. 1941 Geol. Mag. 78 182 The widely occurring surface limestone was seen resting directly on the Laetolil surface. 1954 Amer. Anthropologist 56 379 In the Laetolil beds of the Vogel river..a hominid maxillary fragment with two premolar teeth has been found. 1979 M. D. Leakey & R. H. Hay in Nature 22 Mar. 317/1 The name Laetoli will be used for the area, but the Pliocene deposits will continue to be known as the Laetolil Beds. 1992 Nat. Hist. Feb. 68/3 The bipedal Laetoli hominid had an apelike brain and was probably the common ancestor of modern hominids. 2003 B. A. Ogot My Footpr. Sands Time xii. 330 He suggested that Laetolil hominids..should be considered together with the Hadar material, because they comprise the oldest definitive evidence of the Hominidae. 2004 B. Olsen Sacred Places around World (ed. 2) 216 The Laetoli footprints prove conclusively that walking on two legs was well established before 3.6 million years ago. This is a new entry (OED Third Edition, September 2011; most recently modified version published online March 2022). < n.1936
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