Taonurus cauda-galli, a lebensspuren found in Lower and Middle Devonian rocks of the Appalachian region, has been referred to as a form of seaweed, worm burrows, inorganic mineral markings, or wave markings of a peculiar type. A trace fossil resembling Taonurus cauda-galli has been found at Fourth Lake, Ulster County, New York. The mode of preservation of this fossil and its similarities to Taonurus cauda-galli indicate that both are marine plants of similar origin.

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