Hydroidolina
| 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 |
| Orders | |
| Synonyms | |
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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.