Calderas that were active in the Paleozoic Era (approximately 542 million to 251 million years ago), during the Phanerozoic Eon.
Subcategories
This category has the following 4 subcategories, out of 4 total.
Calderas that were active in the Paleozoic Era (approximately 542 million to 251 million years ago), during the Phanerozoic Eon.
This category has the following 4 subcategories, out of 4 total.