Ant2511Ex3ReviewFall07 - IT IS POSSIBLE THAT A FEW MORE...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
IT IS POSSIBLE THAT A FEW MORE LINES WILL BE CROSSED- OUT MONDAY BUT NOT MANY ……FEEL FREE TO START STUDYING THE NOTES BELOW NOW Ant2511 Exam 3 Review Ant 2511 Fall 07 Chap 09 Part 1 The Earliest Dispersal of the Genus Homo: Homo erectus Contemporaries Introduction 0. Early hominids were found only in Africa 1. Almost 2 million years ago first hominids expand out of Africa into other areas of Old World 2. Used more elaborate stone tools Homo erectus 3. All were members of genus Homo 4. Best know is Homo erectus A New Kind of Hominid Terminology and Splitting 5. Discoveries date back to 19th Century 6. Previously more taxonomic splitting 7. Pithecanthropus” . 8. In China fossils were called “ Sinanthropus” . 9. Now most are placed in species Homo erectus 10. In Africa a possible separate species (next) Homo ergaster 11. Recent discoveries in Africa date Homo erectus to 1.8 m.y.a. 12. Some researchers see differences 13. And name a separate species “Homo ergaster” 14. This text will use term “Homo erectus/ergaster” for this African group Grade 15. H. erectus/ergaster represent a grade of evolution different from ancestors 16. “Grade” refers to a group of organism showing similar adaptive pattern Morphology of Homo erectus 1
Background image of page 1

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

View Full DocumentRight Arrow Icon
17. There is considerable variation in different regions for broadly defined “Homo erectus” 18. The review below is for what “most” look like 19. Brain size, body, cranial shape and dentition Brain Size 20. Cranial size most obvious difference from early Homo 21. A mean of 900 cm 3 . Body Size 22. Larger than earlier hominids 23. Best evidence is complete skeleton at Nariokotome 24. (Lake Turkana in Kenya) Cranial Shape 25. Highly distinctive shape 26. Thick cranial bone 27. Large brow ridges in front 28. Vault is long and low (not much forehead) 29. Cranium wider at base 30. Maximum breadth is below ears 31. Homo sapiens have more vertical sides and wider above ear Dentition 32. Similar to Homo sapiens 33. Earlier species had larger teeth 34. But reduction compared with early Homo 35. (like H. habilis) Ant 2511 Fall 07 Student Chap 09 Part 2 WHO WERE THE EARLIEST AFRICAN EMIGRANTS? Assumptions 0. Known that a new grade of hominid appears in Africa shortly after 2 m.y.a 1. Assumed that hominids who migrated to Europe and Asia were their immediate descendents Why This Conclusion? 36. Geography - Africa was where all earlier hominids appeared 37. Anatomy bigger, brainier hominids 2
Background image of page 2
38. Behavior - more advanced tool kit Reasonable Hypothesis 39. Homo erectus/ergaster first evolved in Africa about 2 m.y.a. 40. Emigrated to other areas of Old World 41. Some difficulties with this view Challenges to Hypothesis 42. Similar hominids appear about same time in Indonesia (Java) 43. And appear soon afterwards in eastern Europe (Dmanisi site) 44. Is it still possible that hominids could have migrated from east Africa that quickly? The Dmanisi Hominids
Background image of page 3

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

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/24/2008 for the course ANT 2511 taught by Professor Sinelli during the Fall '08 term at University of Central Florida.

Page1 / 15

Ant2511Ex3ReviewFall07 - IT IS POSSIBLE THAT A FEW MORE...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online