List of prehistoric medusozoan genera
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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 (nomina dubia), or were not formally published (nomina nuda), as well as junior synonyms of more established names, and genera that are no longer considered medusozoans.
This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.