Eurypterida - Megalograptidae

Full reference: C. D. Walcott. 1882. Description of a New Genus of the Order Eurypterida from the Utica Slate. American Journal of Science 23(135):213-216

Parent taxon: Megalograptidae according to J. C. Lamsdell 2025

See also Dunlop et al. 2020, Sepkoski 2002 and Størmer 1955

Sister taxa: Megalograptus, Pentecopterus

Subtaxa: Echinognathus clevelandi

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Ecology: nektobenthic carnivore

Distribution: found only at Holland Patent NY North (Ordovician of New York)

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Specimen images are retrieved through the ePANDDA API.