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Sea nettles.jpg
Pacific sea nettles, Chrysaora fuscescens
Scientific classification e
Kingdom: Animalia
Phylum: Cnidaria
Subphylum: Medusozoa

Medusozoa is a clade in the phylum Cnidaria, and is often considered a subphylum.[2][3] It includes the classes Hydrozoa, Scyphozoa, Staurozoa and Cubozoa. All except Hydrozoa are called jellyfish.


  1. ^ Subphyla Medusozoa based on "The Taxonomicon – Taxon: Phylum Cnidaria". Universal Taxonomic Services. Archived from the original on 2007-09-29. Retrieved 2007-07-10. 
  2. ^ Marques, Antonio C.; Allen G. Collins (March 2004). "Cladistic analysis of Medusozoa and cnidarian evolution". Invertebrate Biology. 123 (1). pp. 23–42. doi:10.1111/j.1744-7410.2004.tb00139.x. 
  3. ^ Zapata et al. 2015. Phylogenomic analyses support traditional relationships within Cnidaria. PLOS ONE. open access publication – free to read