2.25: Neogene Period (23 to 2.6 million years ago)
- Page ID
- 9794
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Period |
Epoch |
Notes |
Time Range |
Neogene |
Miocene Epoch |
Animals and plants of the Miocene Epoch are approaching modern life forms in diversity and appearance. Earth was warmer with expanded tropical realms compared to the modern world. The Himalayan Mountains begin to rise as the Indian continental landmass began to collide with Asia. See more about the Miocene: American Museum of Natural History | 23 to 5.3 million |
Pliocene Epoch |
Global climates cooled and became dryer with the onset of glaciation cycles. Most families of animals and plants found in the world had ancestral forms during the Pliocene, including humans. Greenland's ice sheet starts to form. South America and North America became linked at the Isthmus of Panama, allowing the cross migration of many species between continents; but also shutting off the migration of species from the Atlantic to the Pacific oceans. The same kind of interactions took place when Africa collided with Europe. See more about the Pliocene: American Museum of Natural History | 5.3 to 2.6 million |