Human Evolution Essay
This species was announced in September 1994. It is thought to
be the oldest known hominid species. It was dated at 4.4 million
years old. The majority of the fossils found were skull fragments.
Other evidence suggests that this species was bipedal. The
individuals were about four feet tall. Some fossils found indicate
that ramidus may have been a forest dweller. The teeth resemble
something between earlier apes and A. afarensis. The fossils were
discovered by a team led by Tim White in Aramis Ethiopia. The
find consists of 17 individuals.
This species was named in August 1995. The fossils were mostly
found in Kanapoi Kenya in 1988. Anamensis is thought to …show more content…
species were discovered in 1978 by Paul Abel at Laetoli in
Tanzania. The estimated age is 3.7 million years old.
A. africanus lived between 3 and 2 million years ago. Their body
sizes and brain sizes were slightly larger than afarensis. The shape
of their jaw was fully parabolic, like that of humans, and the
canine teeth have reduced in size. This species fossils were
discovered by Raymond Dart in 1924 at Taung in south Africa.
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
It is known from a partial skull that differs from previous
australopithecus species in the combination of its features. They
had extremely large teeth especially the rear ones. The skull was
discovered by Y. Haile-Selassie in 1997 at Bouri in Ethiopia. It is
about 2.5 million years old.
A. aethiopicus existed between 2.6 and 2.3 million years ago. This
species is known from the Black Skull specimen discovered by
Alan Walker in 1985 near West Turkana in Kenya. The specimen
is almost completely intact. It has a small cranium capacity for a
hominid and has a strange combination of primitive and advanced
features. This species possessed the largest sagittal crest in any
A. robustus had a body similar to africanus but a larger and more