Vulcanist

This, also, was irrelevant to me, because I disbelieve this story, whereas Guettard's discovery led to visits to Auvergne by Nicolas Desmarets, Frederick Augustus Hervey, John Strange, and others who placed Vulcanism on a sound footing, and this is why Guettard is the first known Vulcanist, who virtually founded the school.

Vulcanists & Neptunists Schneer, Cecil J. 1966

The symmetrical antonym to Vulcanist is Neptunist, and this is why I used that word, which appears to be older in the English language than Diluvialist.

Vulcanists & Neptunists Schneer, Cecil J. 1966

Auvergne practically started the Vulcanist camp. "

Lamarck, the Founder of Evolution His Life and Work 1872