The Eocene occurred during the Terciaty period. To determine the era the Eocene period belongs to, a scientist should study information related to the Cenozoic era. Option B).
<h3>What is the Cenozoic?</h3>
The Cenozoic is an era that covers the period from <em>65 million years ago to the present. </em>
Significant events during the period,
- During this era, there is a decrease in temperature (which until that moment was significantly higher than the current temperatures) and begins an aridity process.
- Since most cretaceous plant species got extinct, there is significant radiation of angiosperm and their consequent domain on the ground.
- Following this diversification, different insects evolve following the different types of plants. Coevolution and pollination acquire protagonism.
- During this period, mammals radiated too, originating in the current region of China.
- Occurs the evolutive radiation of teleosts and birds.
The Cenozoic era includes the tertiary and quaternary periods.
⇒ Tertiary
- Paleocene (65-55 my ago)
- <u>Eocene </u><u>(55-33 my ago)</u>
- Oligocene (32-23 my ago)
- Miocene (23-5 my ago)
- Pliocene (5-2 my ago)
⇒ Quaternary
- Pleistocene (2-0.02 my ago)
- Holocene (0.02 - 0 my ago)
Since the Eocene occurred during the Terciaty period (Cenozoic era), to determine what era the Eocene period belongs to on the geologic time scale, a scientist should study information related to the Cenozoic era. Option B).
You can learn more about the cenozoic at
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