Exam 12: The Early Primate Fossil Record and the Origins of the Hominins

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Early anthropoids can be distinguished from prosimians and tarsiers by:

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Ardipithecus ramidus exhibits the following hominin features:

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Describe the geological events that led to the Miocene hominoid radiation.What were the major consequences of this event?

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The Miocene hominoid radiation was a period of significant evolutionary change for hominoids, including the ancestors of modern humans. This radiation was primarily driven by geological events that created new habitats and environmental conditions that favored the diversification and spread of hominoids.

One of the major geological events that led to the Miocene hominoid radiation was the uplift of the East African Rift Valley. This geological process created a diverse range of habitats, including forests, woodlands, and grasslands, which provided new ecological niches for hominoids to exploit. Additionally, the formation of new mountain ranges and the changing climate during the Miocene epoch also contributed to the creation of new habitats and environmental conditions that favored the diversification of hominoids.

The major consequences of the Miocene hominoid radiation were the diversification and spread of hominoids across different habitats and regions. This period saw the emergence of new hominoid species and the development of different adaptations to various ecological niches. The radiation also led to the eventual emergence of the hominid lineage, which includes modern humans and their closest relatives.

Furthermore, the Miocene hominoid radiation had a significant impact on the evolution of primates and other mammalian groups, as it led to the development of new ecological relationships and interactions. This period also set the stage for the eventual emergence of the first hominids and the subsequent evolution of modern humans.

In conclusion, the Miocene hominoid radiation was driven by geological events that created new habitats and environmental conditions, leading to the diversification and spread of hominoids. The major consequences of this event were the emergence of new hominoid species, the development of different adaptations, and the eventual evolution of modern humans.

The Old World monkeys seem to have first evolved in:

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During the Miocene:

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Oreopithecus possesses:

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The New World monkeys most likely:

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New World and Old World monkeys exhibit many similarities due to:

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The oldest known New World fossil monkey is dated at about:

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Ardipithecus kadabba was classified as a hominin on the basis of:

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The movement of the Afro-Arabian plate into the Asian plate took place approximately:

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The omomyids were:

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Orrorin tugenensis was found in:

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What is the evolutionary relationship of the New World and Old World monkeys? How old is the earliest New World monkey?

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Describe the habitats present at the Fayum during the Early Oligocene.

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The earliest Old World monkeys are separated from the next-oldest known Old World monkeys by a gap in the fossil record of:

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The Plesiadapiformes lived in:

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One of the best known propliopithecoids is:

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The anthropoid primates first appear in the Middle to Late:

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The earliest fossils that belong to the superfamily Lorisoidea were found:

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