Laketown Dolomite

Laketown Dolomite is a geologic formation in Nevada and Utah within the eastern Great Basin, notable for preserving fossils from the Silurian period. As one of the rock units recording marine life from that part of early Paleozoic time, it has been studied for Silurian brachiopods and other marine organisms. Research on the Tony Grove Lake Member has also helped clarify the formation’s place in regional stratigraphy. Its importance rests in the fossil record it preserves, which provides evidence of ancient seas that once covered parts of what are now the interior western United States.

Ely, Nevada · United States