Late Miocene hominids from the Middle Awash, Ethiopia

  title={Late Miocene hominids from the Middle Awash, Ethiopia},
  author={Yohannes Haile-Selassie},
  • Y. Haile-Selassie
  • Published 12 July 2001
  • Geography, Biology, Environmental Science
  • Nature
Molecular studies suggest that the lineages leading to humans and chimpanzees diverged approximately 6.5–5.5 million years (Myr) ago, in the Late Miocene. [] Key Result These Late Miocene fossils are assigned to the hominid genus Ardipithecus and represent the earliest definitive evidence of the hominid clade. Derived dental characters are shared exclusively with all younger hominids. This indicates that the fossils probably represent a hominid taxon that postdated the divergence of lineages leading to…

A new hominid from the Upper Miocene of Chad, Central Africa

The discovery of six hominid specimens from Chad, central Africa, 2,500 km from the East African Rift Valley, suggest that the earliest members of the hominids clade were more widely distributed than has been thought, and that the divergence between the human and chimpanzee lineages was earlier than indicated by most molecular studies.

A new species of great ape from the late Miocene epoch in Ethiopia

The combined evidence suggests that Chororapithecus may be a basal member of the gorilla clade, and that the latter exhibited some amount of adaptive and phyletic diversity at around 10–11 Myr ago.

Early Pliocene hominids from Gona, Ethiopia

New Early Pliocene hominid discoveries and their palaeoenvironmental context from the fossiliferous deposits of As Duma, Gona Western Margin (GWM), Afar, Ethiopia are reported.

The Miocene Hominoids and the Earliest Putative Hominids Hominids

  • B. Senut
  • Geography, Environmental Science
  • 2014
For many years molecular studies suggested that the hominid family emerged during the Pliocene. But today we have good evidence of hominids in African Upper Miocene strata. Reconstructing our

Updated chronology for the Miocene hominoid radiation in Western Eurasia

The results show that identifiable Eurasian kenyapithecins (Griphopithecus and Kenyapithecus) are much younger than previously thought, which casts serious doubts on the attribution of the hominoid tooth from Engelswies, and is consistent with an alternative scenario, according to which the Eurasian pongines and African hominines might have independently evolved in their respective continents from similar kenyAPithecin ancestors.

Pleistocene Homo sapiens from Middle Awash, Ethiopia

Fossilized hominid crania from Herto, Middle Awash, Ethiopia are described and provide crucial evidence on the location, timing and contextual circumstances of the emergence of Homo sapiens.

Toward the Emergence of Hominids

The main subject of this article is fossil hominoids, and some recent findings of early hominids are also mentioned to at the end.

6 The Earliest Putative

It appears that bipedalism is probably the most reliable feature for defining hominids, and first discoveries of modern‐looking apes have been made in 12.5Ma‐old strata at Ngorora (Kenya) and 6‐Ma old deposits at Kapsomin and Cheboit, indicating that the dichotomy between African apes and humans could be much older than generally thought.

Dental anatomy of the early hominid, Orrorin tugenensis, from the Lukeino Formation, Tugen Hills, Kenya

Subsequent to the initial publication of the Late Miocene hominid genus and species, Orrorin tugenensis, in 2001, additional dental remains were discovered which comprise the subject of this paper.



Geology and palaeontology of the Late Miocene Middle Awash valley, Afar rift, Ethiopia

It is shown that these earliest hominids derive from relatively wet and wooded environments that were modulated by tectonic, volcanic, climatic and geomorphic processes, and require fundamental reassessment of models that invoke a significant role for global climatic change and/or savannah habitat in the origin of hominid origins.

First hominid from the Miocene (Lukeino Formation, Kenya)

Lothagam: a record of faunal change in the late Miocene of East Africa

ABSTRACT Lothagam is a richly fossiliferous late Miocene site near the western shore of Lake Turkana, northern Kenya. This site has yielded a diverse fauna documenting a chronological interval poorly

Australopithecus ramidus, a new species of early hominid from Aramis, Ethiopia

The antiquity and primitive morphology of A. ramidus suggests that it represents a long-sought potential root species for the Hominidae.

Genomic divergences between humans and other hominoids and the effective population size of the common ancestor of humans and chimpanzees.

The human lineage apparently had experienced a large reduction in effective population size after its separation from the chimpanzee lineage, suggesting that the gorilla lineage branched off 1.6 to 2.2 million years earlier than did the human-chimpanzee divergence.

Recent African origin of modern humans revealed by complete sequences of hominoid mitochondrial DNAs.

The shallow ancestry of human mtDNAs, together with the observation that the African sequence is the most diverged among humans, strongly supports the recent African origin of modern humans, Homo sapiens sapiens.

Molecular phylogeny of the hominoids: inferences from multiple independent DNA sequence data sets.

  • M. Ruvolo
  • Biology
    Molecular biology and evolution
  • 1997
The multiple-locus test (Wu 1991), which evaluates hypotheses using gene tree-species tree mismatch probabilities in a likelihood ratio test, favors the phylogeny with a Homo-Pan clade and rejects the other alternatives with a P value of 0.002: the problem of hominoid phylogeny can be confidently considered solved.

Chronostratigraphy of the Miocene–Pliocene Sagantole Formation, Middle Awash Valley, Afar rift, Ethiopia

The Sagantole Formation comprises more than 200 m of lacustrine, alluvial, and volcaniclastic sediments, plus compositionally bimodal tephras and basaltic lavas, exposed in a domelike horst named the

Numerical age control for the Miocene-Pliocene succession at Lothagam, a hominoid-bearing sequence in the northern Kenya Rift

Lothagam, located west of Lake Turkana in northern Kenya, is an uplifted fault block comprising a gently westward-dipping sequence of volcanic and sedimentary rocks. The lower part of the sequence,