Volcanism that was active in the Permian period (approximately 299,000,000 years to 251,000,000 years ago).
The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes.
Volcanism that was active in the Permian period (approximately 299,000,000 years to 251,000,000 years ago).
The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes.