{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Anthro Notes - Origins and Evolution of the Genus Homo Homo...

Info icon This preview shows pages 1–20. Sign up to view the full content.

View Full Document Right Arrow Icon
Origins and Evolution of the Genus Homo
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Homo Lineage Definitively incorporated meat into diet Early: existed in eastern and southern Africa Co-existed with Paranthropus species Appears in fossil record 2.5-2.0 mya Stone tools
Image of page 2
5.5 6.0 4.0 4.5 3.0 3.5 2.0 2.5 1.0 1.5 .1 .5 Australopithecus africanus A. garhi P. aethiopicus P. robustus P. boisei Homo habilis H. rudolfensis Homo erectus Homo ergaster Homo neandertalensis Homo sapiens
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
______________of Genus Homo Larger cranial capacity (> 500 cm 3 ) Increased rounding of cranial base More flexion Facial prognathism further reduced Particularly sub-nasal reduction Accompanying increased nasal protrusion Reduced post-orbital constriction Expansion of frontal brain Thicker cranial bones (in general) More rounded/parabolic dental arcade
Image of page 4
A. afarensis vs. Homo species
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
P. boisei H. habilis
Image of page 6
Homo Species H. habilis H. rudolfensis ( * ) H. georgicus ( * ) H. ergaster H. erectus H. antecessor ( * ) H. heidelbergensis H. neanderthalensis H. floresiensis ( * ) H. sapiens (* Species status controversial)
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Homo habilis & rudolfensis East and South (?) Africa ~2.4 - 1.9 mya Localities Hadar, Ethiopia Koobi Fora, Kenya Olduvai, Tanzania Lake Malawi, Malawi Sterkfontein, South Africa? First stone tools habilis = “handy”
Image of page 8
H. habilis Characteristics _________________ Smaller molars and premolars than any australopithecine Slender mandible Larger anterior teeth than Paranthropus
Image of page 9

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
____________________ Smaller face than Australopithecus Rounded maxilla Brow ridges Cranial capacity >500 cc H. habilis Characteristics
Image of page 10
A. africanus 435 - 550 cc H. habilis 500 - 800 cc P. aethiopicus 410 cc Brain Increase: Slight increase 500-800 cc H. habilis Characteristics
Image of page 11

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Homo habilis First finds made in 1960-1961 __________________ in Olduvai Gorge Specimens were much less robust than P. boisei , with smaller teeth and no cresting on the skull Stone tools had already been found at the same layers; the new hominids were thought to be responsible Parts of skulls from ___________ individuals: OH 7, OH 13 , OH 16 OH 7 also associated with a ___________ and some ____________ bones OH 8 is a left ____________
Image of page 12
A Few H. habilis Specimens
Image of page 13

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
H. habilis Postcranial Specimens Foot more advanced and resembles extant humans suggesting a more striding gait Convergent hallux (___Symphlesiomorphy) Arch in foot (symplesiomorphy) Straighter foot phalanges Larger femoral head than Australopithecus Some arboreal traits retained Retains long arms relative to legs Hand phalanges still curved
Image of page 14
Chimp Human OH 8 foot (reversed for comparison) OH 8 foot (reversed for comparison)
Image of page 15

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
H. rudolfensis H. habilis Two Species?
Image of page 16
H. habilis & H. rudolfensis H. habilis & H. rudolfensis H. habilis H. rudolfensis
Image of page 17

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Homo rudolfensis Characteristics Slight supraorbital torus (brow ridge) Long, flat face Tall zygomatics Squared off upper jaw Large postcanine teeth Cranial capacity 775 cc Possibly more human-like femur than H. habilis
Image of page 18
Kenyanthropus and H. rudolfensis
Image of page 19

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 20
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern