ASBOG Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What is the correct order of the Tertiary epochs from oldest to youngest?

Oligocene; Pliocene; Miocene; Eocene; Paleocene

Paleocene; Eocene; Oligocene; Miocene; Pliocene

The correct order of the Tertiary epochs from oldest to youngest is Paleocene, Eocene, Oligocene, Miocene, and Pliocene. This sequence reflects the geological time scale where each epoch represents significant changes in the Earth's climate, flora, and fauna.

The Paleocene is the earliest epoch in the Tertiary period, marking the recovery of life after the mass extinction event at the end of the Cretaceous. The Eocene follows, characterized by the emergence of many modern mammal families and the warm climate that dominated early in this epoch. The Oligocene comes next and is noted for a global cooling trend, leading to the development of grasslands and a further diversification of mammal species. The Miocene epoch, following the Oligocene, is known for the expansion of forests and the appearance of many species that would shape modern ecosystems. Finally, the Pliocene marks the latest of these epochs, setting the stage for significant climatic changes that lead into the Pleistocene.

Understanding this sequence is crucial for recognizing the evolution of life on Earth and the climatic conditions during these times, making it an important concept in geology and paleontology.

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Eocene; Paleocene; Oligocene; Miocene; Pliocene

Pleistocene; Holocene; Miocene

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