Exam 4 Part 4 Flashcards
Where are Australopithecus africanus found?
Taung, Sterkfontein, Makapansgat (South Africa)
How old is Australopithecus africanus?
3.3-2 million years ago
Type of hominin that are one of the first hominids found,, more robust skull, large molars, large jaws, no diastema
Australopithecus africanus
What is the sexual dimorphism like for Australopithecus africanus?
No sexual dimorphism in terms of canine teeth
What are the characteristics of robust australopithecines?
Large teeth and heavily built crania, bipedalism, sagittal crest
When’d id the robust australopithecines evolve from gracile australopithecines?
2.5 million years ago
What is the brain size for robust australopithecines?
450-530 cc
Flat face
Orthognathic
What is the face like for robust australopithecines?
Orthognathic
What is the post-orbital constriction like for robust australopithecines?
Strong zygomatic arch and post-orbital constriction
What are the teeth like for robust australopithecines?
Large teeth, especially molars
What is the diet like for robust australopithecines?
Harder shelled fruits, social insects (termites); lots of grit wear down teeth
Where are robust australopithecines found?
East Africa
How long did robust australopithecines live?
1.5 million years
Where are homo habilis located?
Tanzania and Kenya
How old is homo habilis?
2.3-1.6 mya
What is the brain size of homo habilis?
612 cc
What are some special features of homo habilis?
teeth smaller than australopithecus, primitive postcrania, larger brain size, small gracile face, Oldowan tools
Simple chopping tools, rough edge for cutting the core, produce very sharp flakes
Oldowan tools
What hominin are associated with Oldowan tools?
Homo habilis
