Sahelanthropus tchadensis
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Sahelanthropus tchadensis is a fossil hominin discovered in Chad, dating between 7 and 6 million years ago. It is considered the earliest candidate for hominin status. While its skull shows some humanlike traits, such as a reduced canine tooth and a less projecting face, its brain size was ape-like. It is uncertain if Sahelanthropus tchadensis walked upright, as only a cranium and jaw fragments have been found. The foramen magnum's position suggests a potentially upright posture, but it is unlikely to be a direct ancestor of Homo sapiens. This fossil highlights the complex and experimental nature of human evolution, with early hominins exhibiting a mix of ape and human characteristics.12
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Australopithecus…the human lineage (hominins) include Sahelanthropus tchadensis (7–6 mya), Orrorin tugenensis (6 mya), Ardipithecus kadabba (5.8–5.2 mya), and Ar. ramidus (5.8–4.4 mya)—that is, pre-Australopithecus species that are considered to be ancient humans—and one additional species of early human, Kenyanthropus platyops (3.5 mya). The first undisputed
Read More…the human lineage (hominins) include Sahelanthropus tchadensis (7–6 mya), Orrorin tugenensis (6 mya), Ardipithecus kadabba (5.8–5.2 mya), and Ar. ramidus (5.8–4.4 mya)—that is, pre-Australopithecus species that are considered to be ancient humans—and one additional species of early human, Kenyanthropus platyops (3.5 mya). The first undisputed
Read More- AustralopithecusEarly species and Australopithecus anamensis
…example, the purported earliest species, Sahelanthropus tchadensis, is humanlike in having a slightly reduced canine tooth and a face that does not project forward very far. However, in most other respects, including brain size, it is apelike. Whether the species walked upright is not known because only a single cranium,…
Read More…example, the purported earliest species, Sahelanthropus tchadensis, is humanlike in having a slightly reduced canine tooth and a face that does not project forward very far. However, in most other respects, including brain size, it is apelike. Whether the species walked upright is not known because only a single cranium,…
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