List of prehistoric hexacoral genera

This list of prehistoric hexacorals (hexacorallia) is an attempt to create a comprehensive listing of all genera that have ever been included in the hexacorallia which are known from the fossil record.

This list excludes purely vernacular terms.

It 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 scleractinia.

Naming conventions and terminology follow the International Code of Zoological Nomenclature.

Technical terms used include:

A modern species of the prehistoric hexacoral genus Acropora from near the Hawaiian islands .
Amphiastrea Etallon 1859 from the Matmor Formation of southern Israel.
Aspidiscus cristatus from the Cenomanian (Upper Cretaceous ) of southern Israel ; oral view.
Aspidiscus cristatus from the Cenomanian (Upper Cretaceous) of southern Israel; aboral view.
The rugose coral Asterobillingsia sp. Late Devonian , Kakisa Formation , Trout River , Northwest Territories ( Canada ). At the Royal Tyrrell Museum of Palaeontology .
The rugose coral Cyathophylloides sp. , from the late Ordovician , Georgian Bay Formation , Ontario , Canada .
Enallhelia , a Callovian (Middle Jurassic) scleractinian coral from the Matmor Formation of southern Israel.
Epistreptophyllum , a scleractinian coral from the Matmor Formation (Callovian, Middle Jurassic) of southern Israel; side view.
Medusaephyllum sp. Late Devonian , Kakisa Formation , Trout River , Northwest Territories ( Canada ). At the Royal Tyrrell Museum of Palaeontology .
The scleractinian coral Microsolena from the Matmor Formation , Middle Jurassic, southern Israel.