''Cryptophragmus'' is an extinct genus of sponges in the extinct family
Aulaceratidae. Species are from the Ordovician of Australia, Canada (Ontario), China and the United States (Georgia, Virginia).
See also
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List of prehistoric sponge genera
This list of prehistoric sponges is an attempt to create a comprehensive listing of all genera that have ever been included in the phylum Porifera, excluding purely vernacular terms. The list includes all commonly accepted genera, but also genera ...
References
* The Rise, Development and Extinction of Stromatoporoids. Deyuan Dong, Palaeontologia Cathayana, pages 267–268,
External links
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Monotypic prehistoric sponge genera
Stromatoporoidea
Ordovician animals
Paleozoic life of Ontario
Fossil taxa described in 1914
Paleozoic sponges
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