Homo habilis compared directly to Homo floresiensis
According to Wikipedia – Homo floresiensis (Brown et al 2004)
“Two hypotheses have been proposed as to the origin of H. floresiensis. The first proposes that H. floresiensis descended from an early migration of very primitive small Australopithecus/Homo habilis-grade archaic humans outside of Africa prior to 1.75 million years ago.”
“Other authors have argued that H. floresiensis instead likely represents the descendants of a population of Javanese Homo erectus that became isolated on Flores, with the small body size being the result of insular dwarfism.”
The skull of Homo habilis (Leakey et al 1964)
is placed directly on an image of Homo floresiensis in a GIF movie here. The differences are few. The latter has a deeper occiput and a more prognathus dentary with a rounder = shallower retroarticular area.
Both were similar in height (1.1m to 1.3m).
Be sure to view
the updated ‘parade of skulls’ in lateral view leading from primate ancestors to gorillas on one branch and humans on the other branch at the bottom of the web page here. As much as the elevation of the forehead (housing the cerebrum) in human ancestors, also note the depression of the occiput (housing the cerebellum).
“The cerebellum is a dense “little brain” located at the back of the head, housing over half the brain’s neurons, that primarily coordinates voluntary movements, balance, and motor learning. It fine-tunes motor tasks and supports cognitive functions (decision-making, learning) and emotional regulation.”
Seemingly this lower expansion has just as much to do with ‘being human’ and ‘human achievement’ as the cerebrum.
Note the apparent reduction of this lower expansion of the occiput in Ardipithecus + Oreopithecus as well as its reappearance and expansion in descendant taxa.
References
Brown P et al. 2004. A new small-bodied hominin from the Late Pleistocene of Flores, Indonesia. Nature. 431 (7012): 1055–1061.
Leakey L, Tobias PV and Napier R1964. A New Species of the Genus Homo from Olduvai Gorge. Nature. 202 (4927): 7–9.
wiki/Homo_floresiensis
wiki/Homo_habilis
wiki/Human
Source: https://pterosaurheresies.wordpress.com/2026/03/15/homo-habilis-compared-directly-to-homo-floresiensis/
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