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Steinmannia Fischer 1886

PaleoDB taxon number: 126367

Synonym: Aulacomya Steinmann 1881 [replaced name] (taxon 383345)

Parent taxon: Posidoniidae according to S. Ros-Franch et al. 2014

Sister taxa: Amonotis, Bositra, Caenodiotis, Didymotis, Ellesmerella, Imposidonia, Magnolobia, Multisidonia, Posidonia, Posidonotis, Pterohalobia, Veldidenella

Subtaxa: Steinmannia alikiensis, Steinmannia bronni, Steinmannia viligaensis

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