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The Dmanisi skull, also known as Skull 5 or D4500, is one of five skulls discovered in Dmanisi, Georgia and classified as early Homo erectus.Described in a publication in October 2013, it is estimated to be about 1.8 million years old and is the most complete skull of a Pleistocene Homo species, [1] [2] and the first complete adult hominin skull of that degree of antiquity.
The skulls were significant not only in their set of unique features. Skull 5 was the first found completely preserved adult hominin skull from the Early Pleistocene, [4] and Skull 4 is the only toothless hominin discovered in such early sediments. [16] In addition to the skulls, about a hundred postcranial remains have been discovered. [4]
Similarly, the post-orbital constriction index has become a form to compare and contrast craniums with the possibility of determining the relative age and evolutionary place of a new found hominin. Cranial capacity and post-orbital constriction index can demonstrate a correlation between increased brain size and reduced post-orbital ...
Paleoanthropology or paleo-anthropology is a branch of paleontology and anthropology which seeks to understand the early development of anatomically modern humans, a process known as hominization, through the reconstruction of evolutionary kinship lines within the family Hominidae, working from biological evidence (such as petrified skeletal remains, bone fragments, footprints) and cultural ...
The Harbin skull measures 221.3 mm × 164.1 mm (8.7 in × 6.5 in) in maximum length x breadth, with a naso-occipital length of 212.9 mm (8.4 in), making it the longest archaic human skull to date. [1] For comparison, the dimensions of a modern human skull average 176 mm × 145 mm (6.9 in × 5.7 in) for men and 171 mm × 140 mm (6.7 in × 5.5 in ...
The size of the brain is a frequent topic of study within the fields of anatomy, biological anthropology, animal science and evolution.Measuring brain size and cranial capacity is relevant both to humans and other animals, and can be done by weight or volume via MRI scans, by skull volume, or by neuroimaging intelligence testing.
[5] [3] Jinniushan's external cranium is the same size as Dali's, but Jinniushan's bones are thinner, so the Jinniushan specimen has a larger brain capacity than the Dali specimen. [ 11 ] Both specimens have flat and broad faces, a feature shared with the specimen from Hulu Cave, Nanjing; [ 12 ] both also share some features with the ...
Homo rudolfensis is an extinct species of archaic human from the Early Pleistocene of East Africa about 2 million years ago (mya). Because H. rudolfensis coexisted with several other hominins, it is debated what specimens can be confidently assigned to this species beyond the lectotype skull KNM-ER 1470 and other partial skull aspects.