S. tchadensis

-small braincase, large browridges, u-shaped jaw, sagittal crest, prognathic, no chin, flat canines, post-orbital constriction

-7 mya

-Chad, Africa

-320-380cc

-simple, chimp-like tools

-plant eater, chimp-like culture

A. afarensis

-sloping forehead, projecting face, prognathic, prominent brow ridges, foramen magnum in center, sagittal crest, large canines, Y-5 molar, post-orbital constricition, flaring zygomatic arches

-3.8-3 mya

-Ethiopia and Tanzania

-300cc

-unmodified stones

-plants/meat, chimp-like culture

A. africanus

-smaller brow ridge, slightly arched forehead, foramen magnum in center, large dentition, post-orbital constriction

-3.3-2.3 mya

-South Africa

-450cc

-unmodified stone

-chimp-like culture, plant/meat

A. boisei

-flat forehead, prominent browridges, center foramen magnum, sagittal crest, large molars, think/large jaw bone, flaring zygomatic arches, post-orbital constriction

-2.4-1.4 mya

-East & South Africa

-420-520cc

-unmodified stone

-seeds, nuts, and some meat

Chimpanzee

-large canine, prognathic, large browridges, foramen magnum in the back, sagittal crest, zygomatic arch, large/wide jaw

-currently alive

-Africa

-400cc

-unmodified stone, sticks

-vegetables/meat

Neanderthal

-28-300 tya

-large  eye sockets, large nose hole, football shaped skull, long/thick jaw, occipital bun, projecting face, large browrides, large dentition

-Europe & Asia

-1500 cc

-Mousterian Tool

-vegetable/meat, fire, shelther, clothing, burials, art, decoration

Homo habilis

-rounder brain case, small browridge, less prognathism, small jaw, u-shaped jaw, small dentition, less post-orbital constriction

-2.5-1.5 mya

-Kenya & Tanzania

-610cc

-Olduvai tools

-vegetable/meat, scavenger

Homo erectus

-massive browride, flat nose, large/thick jaw, more modern dentition, less post-orbital constriction, nuchal torus, sagittal keel

-1.8mya-50tya

-Asia

-1050cc

-Acheulean tools

-meat/plants, fire, hunting/gathering, long learning period