Mesodon

Recognized by NMNH Invertebrate Zoology

Genus recognized by North Atlantic Species List, Delete- old US Species List, Barcode of Life Data Systems, Canada Species List, Wikidata, United States Species List, and Wikimedia Commons

Species recognized by Protists in Singapore

Recognized by iNaturalist and NMNH Invertebrate Zoology

Genus recognized by GBIF classification

Homotypic synonym according to GBIF classification (Originally found in sources as accepted taxon within Mesodon andrewsae W.G.Binney, 1879)

Homotypic synonym according to GBIF classification (Originally found in sources as accepted taxon within Mesodon andrewsae W.G.Binney, 1879)

Homotypic synonym according to GBIF classification (Originally found in sources as accepted taxon within Mesodon audrewsae)

Homotypic synonym according to GBIF classification (Originally found in sources as accepted taxon within Polygyra Say, 1818)

Harvest ancestor according to GBIF classification, NMNH type specimens, and Flickr Group