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Lower Devonian ophiuroid ichnofossils (Biformites insolitus and facetted burrows) in a stressed coastal paleoenvironment: Clam Bank Formation, northern Canadian Appalachians

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Observational analysis reveals ichnofossils and burrows in the Lower Devonian Clam Bank Formation, indicating ecological behaviors.

The study identifies the presence of ichnofossils and burrows in a stressed coastal paleoenvironment.
Biformites insolitus exhibits unique features with narrow strap-like imprints measuring up to 7 cm long.
Findings highlight behavioral complexities of ophiuroids, as imprints suggest both vertical burrowing and ecological adaptability.
Interpreted structures expand the stratigraphic range of ichnofossils, emphasizing their significance in understanding paleoecology.

George R. Dix (2025) studied this question.

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