minid Species :: essays papers

minid SpeciesThe time of the split in the midst of humans and upkeep apes apply to be thought to have occurred 15 to 20 one billion million days ago, or even up to 30 or 40 million days ago. Some apes occurring within that time period, such as Ramapithecus, utilise to be considered as hominids, and possible forerunners of humans. Later dodo finds indicated that RamapiHothecus was much well-nigh related to the orang-utan, and new biochemical turn up indicated that the last car park ancestor of hominids and apes occurred between 5 and 10 million years ago, and believably in the imprinter end of that range. Ramapithecus t presentfore is no longer considered a hominid. The species here are listed roughly in order of appearance in the fossil record (note that this ordering is not meant to represent an evolutionary sequence), nevertheless that the burly australopithecines are kept together.Ardipithecus ramidusIt is the oldest known hominid species, put together in the center Awash region of Ethiopia in 1994 by Tim White and date at 4.4 million years. Most remains are skull fragments. Indirect point suggests that it was perhaps bipedal, and that some individuals were about 122 cm (40) tall. The dentition are arbitrate between those of earlier apes and A. afarensis, but one baby tooth is real primeval, resembling a chimpanzee tooth more than any other known hominid tooth. some other fossils piece with ramidus indicate that it whitethorn have been a forest dweller. This may showcase modification of current theories about why hominids became bipedal, which often necktie bipedalism with a move to a savannah environment. Australopithecus anamensisThis species was found in 1994 by Maeve Leakey in Kanapoi and Allia Bay situated in North Kenya. The temporal consists of 9 fossils, mostly found in 1994, from Kanapoi, and 12 fossils, mostly teeth found in 1988, from Allia Bay. Anamensis existed between 4.2 and 3.9 million years ago, and has a gar land of primitive features in the skull, and advanced features in the body. The teeth and jaws are very alike to those of older fossil apes. A partial tibia is well-set evidence of bipedality, and a lower humerus is extremely humanlike. Australopithecus afarensisA. afarensis existed between 3.9 and 3.0 million years ago. The first of its fossils were found in the mid 1970s on the east African Rift valley. Afarensis had an apelike face with a low forehead, a bony ridge over the eyes, a flat nose, and no chin.minid Species essays papersminid SpeciesThe time of the split between humans and living apes used to be thought to have occurred 15 to 20 million years ago, or even up to 30 or 40 million years ago. Some apes occurring within that time period, such as Ramapithecus, used to be considered as hominids, and possible ancestors of humans. Later fossil finds indicated that RamapiHothecus was more closely related to the orang-utan, and new biochemical evidence indicated that the la st common ancestor of hominids and apes occurred between 5 and 10 million years ago, and probably in the lower end of that range. Ramapithecus therefore is no longer considered a hominid. The species here are listed roughly in order of appearance in the fossil record (note that this ordering is not meant to represent an evolutionary sequence), except that the robust australopithecines are kept together.Ardipithecus ramidusIt is the oldest known hominid species, found in the Middle Awash region of Ethiopia in 1994 by Tim White and dated at 4.4 million years. Most remains are skull fragments. Indirect evidence suggests that it was possibly bipedal, and that some individuals were about 122 cm (40) tall. The teeth are intermediate between those of earlier apes and A. afarensis, but one baby tooth is very primitive, resembling a chimpanzee tooth more than any other known hominid tooth. Other fossils found with ramidus indicate that it may have been a forest dweller. This may cause modifi cation of current theories about why hominids became bipedal, which often link bipedalism with a move to a savannah environment. Australopithecus anamensisThis species was found in 1994 by Maeve Leakey in Kanapoi and Allia Bay situated in North Kenya. The material consists of 9 fossils, mostly found in 1994, from Kanapoi, and 12 fossils, mostly teeth found in 1988, from Allia Bay. Anamensis existed between 4.2 and 3.9 million years ago, and has a mixture of primitive features in the skull, and advanced features in the body. The teeth and jaws are very similar to those of older fossil apes. A partial tibia is strong evidence of bipedality, and a lower humerus is extremely humanlike. Australopithecus afarensisA. afarensis existed between 3.9 and 3.0 million years ago. The first of its fossils were found in the mid 1970s along the East African Rift valley. Afarensis had an apelike face with a low forehead, a bony ridge over the eyes, a flat nose, and no chin.