Amazonian epoch en · PROPN
Etymology
Named for Amazonis Planitia.
Meanings
- The most recent of the Martian geologic epochs, from approximately 1.8 billion (1800 million) years ago (the end of the Hesperian epoch) to the present.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| the Amazonian epoch | canonical | lexicographic |