Order Semaeostomeae Agassiz 1862

Scyphozoa - Semaeostomeae

Alternative spelling: Semaeostomatida

Parent taxon: Discomedusae according to H. Van Iten et al. 2014

See also Pates et al. 2021 and Sepkoski 2002

Sister taxon: Rhizostomeae

Subtaxa: Cyaneidae Eulithotidae Pelagiidae Semaeostomitidae Ulmariidae

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Distribution:

• Triassic of Spain (1 collection)

• Cambrian of United States (1: Utah)

Total: 2 collections each including a single occurrence

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