List of prehistoric medusozoan genera

This list of prehistoric medusozoan genera is an attempt to create a comprehensive listing of all genera that have ever been included in the subphylum Medusozoa, excluding purely vernacular terms. The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful, or were not formally published, as well as junior synonyms of more established names, and genera that are no longer considered medusozoans.

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