01 A plume-shaped fossil, supposed to be a seaweed, characteristic of the lower Devonian rocks; as, the cauda galli grit.
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1.
A plume-shaped fossil, supposed to be a seaweed, characteristic of the lower Devonian rocks; as, the cauda galli grit.(Paleon.)
Phrases & compounds
Cauda galli epoch —
an epoch at the begining of the Devonian age in eastern America, so named from the characteristic gritty sandstone marked with impressions of Cauda galli. See the Diagram under Geology.