Polished Handheld Ammonite - Cleoniceras triceratops This flood basalt eruption covered

This flood basalt eruption covered over 7 million square kilometers (2

In an instant

Above: Sikhote Alin specimens

This specimen is a product of the violent 2018 lower Puna eruption in the East Rift Zone of Mount Kīlauea in Hawaiʻi

Murchison in particular is one of the most studied of all meteorites

Polished Handheld Ammonite - Cleoniceras triceratops This flood basalt eruption coveredAmmonites are an extinct group of cephalopods that entered the fossil record 400 million years ago. This specimen is a beautiful polished Cleoniceras fossil from Madagascar. These specimens measure between 3 4 inches and are the perfect size to hold in your hand. These fossils measure between 3 4 inches and are the perfect size to hold in your hand. This particular genus of ammonite had beautiful suture patterns that crossed their shells like