Hydroidolina

Hydroidolina is a subclass of Hydrozoa and makes up 90% of the class. Controversy surrounds who the sister groups of Hydroidolina are, but research has shown that three orders remain consistent as direct relatives: Siphonophorae, Anthoathecata, and Leptothecata.

Hydroidolina
Siphonophorae from Ernst Haeckel's 1904 Kunstformen der Natur
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Cnidaria
Class: Hydrozoa
Subclass: Hydroidolina
Marques & Collins, 2004
Order:
  • Anthoathecata
  • Leptothecata
  • Siphonophorae

See text.

Synonyms
  • Hydroida
  • Hydroidae
  • Hydroidolinae Marques & Collins, 2004
  • Hydroidomedusa
  • Hydroidomedusae
  • Leptolida Haeckel, 1879
  • Leptolina Haeckel, 1879
  • Leptolinae Haeckel, 1879
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