ANTHROP 3409 Chapter 14: Chapter 14

• School: Ohio State University
• Department: Anthropology
• Course: ANTHROP 3409
• Professor: Mc Graw William

Document Summary

Introduction: south america late oligocene, many unusual mammals unique to that continent, no similar appearances of exogenous mammals until the joining of the northern and southern hemispheres. The platyrrhine fossil record: relatively scarce, much of the evolution of this group took place in areas from which there are very few fossil mammals at all, such as the vast amazonian basin. The earliest platyrrhines: late oligocene locality of salla in bolivia, small monkeys with three premolars and three molars, short-faced, low, rounded cusps, frugivorous, branisella, stem platyrrhine, szalatavus. Late miocene amazonian monkeys: fossil record of primates limited in amazonia, acrecebus fraileyi, frugivorous, solimoea acrensis, 6 kg, frugivorous. Summary of fossil platyrrhines: overall similarity of many extinct species to modern lineages, evidence that fossil monkeys from miocene of patagonia are stem platyrrhines that precede modern radiation, extant platyrrhine fauna is very impoverished from that in pleistocene.