Redescription of the Early Cambrian Helenia bella Walcott, an appendage of Hyolithes

Ellis L. Yochelson

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USGS · 70156523

Redescription of the Early Cambrian Helenia bella Walcott, an appendage of Hyolithes

Ellis L. Yochelson

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Ellis L. Yochelson. 1974. Redescription of the Early Cambrian Helenia bella Walcott, an appendage of Hyolithes. https://pubs.usgs.gov/publication/70156523

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