†superfamily Megalograptoidea Caster and Kjellesvig-Waering 1955 (eurypterid)

Euchelicerata - Eurypterida

Parent taxon: Eurypterina according to J.A. Dunlop et al. 2020

Sister taxa: Diploperculata, Eurypteroidea, Moselopteroidea, Onychopterelloidea, Wiedopterus

Subtaxa: Megalograptidae

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Type: Megalograptus

Ecology: nektobenthic carnivore

Distribution:

• Silurian of France (1 collection)

• Ordovician of United States (10: Iowa, New York, Ohio, Pennsylvania, Virginia)

Total: 11 collections each including a single occurrence

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