The Fayum Depression is important for what aspect of primate evolution?

The Fayum Depression is particularly significant in the context of primate evolution because it serves as a critical site for the discovery of early haplorhine fossils. These fossils provide essential insights into the evolutionary history of higher primates, including monkeys and apes. The Fayum is known for its well-preserved fossil remains that date back to the Eocene epoch, showcasing a diverse range of primate species.

The fossils found in this area help scientists understand crucial developments in primate adaptations, especially the transition from prosimians to more advanced forms of primates. By studying these remains, researchers can trace morphological changes and evolutionary relationships that occurred during this pivotal time in primate history.

The other options do not accurately reflect the significance of the Fayum Depression. While it does feature early primate fossils, the distinction of haplorhines specifically emphasizes the importance of this location in understanding the lineage leading to modern monkeys and apes, making it a key area of interest in paleoanthropology.