Where did Australopithecus anamensis live?
Environment. Australopithecus anamensis was found in Kenya, specifically at Allia Bay, East Turkana.
What is the geographic range where we find Australopithecus anamensis?
Distribution. Fossils of this species have been found in the Middle Awash in northeast Ethiopia and at three sites (Allia Bay, Kanapoi and Sibolot) scattered around Lake Turkana in Kenya, Africa.
What did au Anamensis evolve from?
Australopithecus afarensis
Evolutionary Tree Information: Jaw remains suggest that this species was the direct ancestor of Australopithecus afarensis, and possibly the direct descendent of a species of Ardipithecus.
Is Australopithecus anamensis robust?
Australopithecus aethiopicus, robustus and boisei are known as robust australopithecines, because their skulls in particular are more heavily built.
Who discovered a Anamensis?
Australopithecus anamensis (or Praeanthropus anamensis) is a stem-human species that lived approximately four million years ago. Fossils have been excavated in Kenya and Ethiopia. The first specimen was discovered in 1965 near Lake Turkana, followed by excavations in 1987 by Allan Morton.
What was before Australopithecus?
Within the superfamily Hominoidea, the family Hominidae (great apes) diverged from the family Hylobatidae (gibbons) some 15–20 million years ago; subfamily Homininae (African apes) diverged from Ponginae (orangutans) about 14 million years ago; the tribe Hominini (including humans, Australopithecus, and chimpanzees) …
Who is the oldest Australopith?
Only after analysing other fossils subsequently uncovered nearby and at Laetoli in Kenya did scientists establish a new species, Australopithecus afarensis, four years after Lucy’s discovery. At the time, Au. afarensis was the oldest hominin species known, although far older species have since been found.
Did anamensis use tools?
Scientists have discovered evidence that human ancestors were using stone tools and consuming meat from large mammals nearly a million years earlier than previously documented. The bones are about 3.4 million years old and provide the first evidence that Australopithecus afarensis used stone tools and consumed meat.
How old was the Australopithecus anamensis when it lived?
Australopithecus anamensis is a hominin species that lived approximately between 4.2 and 3.8 million years ago. Nearly one hundred fossil specimens are known from Kenya and Ethiopia, representing over 20 individuals.
What kind of teeth did au.anamensis have?
Unlike the parabolic tooth arrangement in the jaws of later hominins, Au. anamensis had an apelike, U-shaped dental arcade wherein the cheek teeth are nearly parallel (see Figure 10.3). Their jaws were also prognathic and their canines were larger than descendent species.
How are Australopithecus anamensis similar to Ardipithecus ramidus?
Tooth size variability in A. anamensis suggests that there was significant body size variation. In relation to their diet, A. anamensis has similarities with their predecessor Ardipithecus ramidus. A. anamensis sometimes had much larger canines than later Australopithecus species.
What kind of food did Australopithecus anamensis eat?
Their skeletons show that they walked on two legs when on the ground and they probably spent a lot of time climbing trees, perhaps searching for food or avoiding predators. Their teeth indicate they were plant-eaters, eating both fruits and hard-to-chew foods such as nuts.