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Colorado River Raft Tour - the Redwall Limestone at Nautiloid Canyon

Detailed Description

~Mile 34.5: Canyon adventurers looking at fossils in the Redwall Limestone at Nautiloid Canyon. Abundant cone shaped, straight-shelled, chambered nautiloids are exposed in the rock here, some are almost a meter long. These fossils occur in the Thunder Springs Member of the Redwall Limestone (Potochnik and Reynolds, 1990).


Public Domain.