ARCH 131 Lecture Notes - Lecture 17: Homo Sapiens Idaltu, Jebel Irhoud, Klasies River Caves

• School: Simon Fraser University
• Department: Archaeology
• Course: ARCH 131
• Professor: Dennis Sandgathe

Document Summary

We amhs first appear between 250k and 150k years ago. The oldest amh fossils we have are from africa. Living modern humans have a very low degree of genetic variability. Everyone alive today is a member of the subspecies homo sapiens sapiens. Tall, rounded cranial vault (tall from top to bottom, short from side to side) Large mastoid process (space behind jaw where lower jaw muscles attach); you can feel it when you clench. Widest point of skull is high up on sides. We lack the retromolar gap (gap behind last molar) unlike a neandertal. We are even losing space needed for our 3rd molars our wisdom" teeth, so they become impacted against the second molar and need to be removed in some cases. Cranial capacity: 1350 cc, while early amh fossils had an average cranial capacity of. Narrower build (not as awide in the body)