Fossil dating

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That is a misleading image, as there are now thousands of hominid fossils.They are however mostly fragmentary, often consisting of single bones or isolated teeth. The list is sorted by species, going from older to more recent species. A braincase is the cranium minus the face and upper jaw. Abbreviations: ER East (Lake) Rudolf, Kenya WT West (Lake) Turkana, Kenya KP Kanapoi, Kenya SK Swartkrans, South Africa Sts, Stw Sterkfontein, South Africa TM Transvaal Museum, South Africa OH Olduvai Hominid, Tanzania AL Afar Locality, Ethiopia ARA-VP Aramis Vertebrate Paleontology, Ethiopia BOU-VP Bouri Vertebrate Paleontology, Ethiopia TM Toros-Menalla, Chad TM 266-01-060-1, "Toumai", Sahelanthropus tchadensis Discovered by Ahounta Djimdoumalbaye in 2001 in Chad, in the southern Sahara desert. This is a mostly complete cranium with a small brain (between 320 and 380 cc). 2002, Wood 2002) It has many primitive apelike features, such as the small brainsize, along with others, such as the brow ridges and small canine teeth, which are characteristic of later hominids. Most remains are teeth, but there is also a partial lower jaw of a child, a partial cranium base, and partial arm bone from 2 individuals.In humans it is at the bottom of the skull because our head is balanced on top of a vertical column.In australopithecines it is also placed forward from the ape position, although not always as far forward as in humans.The find consisted of a full face, teeth and jaws, and an endocranial cast of the brain.It is between 2 and 3 million years old, but it and most other South African fossils are found in cave deposits that are difficult to date.Within each species, finds are sorted by the order of their discovery. "ARA-VP, Sites 1, 6 & 7", Ardipithecus ramidus Discovered by a team led by Tim White, Berhane Asfaw and Gen Suwa (1994) in 19 at Aramis in Ethiopia. ARA-VP-6/1 consists of 10 teeth from a single individual. About 45% of her skeleton was found, including most of the skull, pelvis, hands and feet, and many limb bones.Each species has a type specimen which was used to define it. If the fossil was originally placed in a different species, that name will also be given. ARA-VP-7/2 consists of parts of all three bones from the left arm of a single individual, with a mixture of hominid and ape features. She was about 120 cm (3'11") tall and weighed about 50 kg (110 lbs).

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KP 29285, Australopithecus anamensis Discovered by Kamoya Kimeu in 1994 at Kanapoi in Kenya.This is a tibia, missing the middle portion of the bone, which is about 4.1 million years old.It is the oldest known evidence for hominid bipedalism.The large rounded brain, canine teeth which were small and not apelike, and the position of the foramen magnum(*) convinced Dart that this was a bipedal human ancestor, which he named Australopithecus africanus (African southern ape).Although the discovery became famous, Dart's interpretation was rejected by the scientific community until the mid-1940's, following the discovery of other similar fossils.

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