Hydroidolina[1] je podklasa Hydrozoa i čini 90% klase.[2] Kontroverze su oko toga ko su sestrinske grupe Hydroidolina. Istraživanje je pokazalo da tri reda konzistentno ostaju kao direktni srodnici: Siphonophorae, Anthoathecata, and Leptothecata.[3]
- ^ Kayal E, Bentlage B, Cartwright P, Yanagihara AA, Lindsay DJ, Hopcroft RR, Collins AG (новембар 2015). „Phylogenetic analysis of higher-level relationships within Hydroidolina (Cnidaria: Hydrozoa) using mitochondrial genome data and insight into their mitochondrial transcription”. PeerJ. 3: e1403. PMC 4655093 . PMID 26618080. doi:10.7717/peerj.1403 .
- ^ Collins AG, Schuchert P, Marques AC, Jankowski T, Medina M, Schierwater B (фебруар 2006). Collins T, ур. „Medusozoan phylogeny and character evolution clarified by new large and small subunit rDNA data and an assessment of the utility of phylogenetic mixture models”. Systematic Biology. 55 (1): 97—115. PMID 16507527. S2CID 15523821. doi:10.1080/10635150500433615 .
- ^ Bentlage B, Collins AG (септембар 2021). „Tackling the phylogenetic conundrum of Hydroidolina (Cnidaria: Medusozoa: Hydrozoa) by assessing competing tree topologies with targeted high-throughput sequencing”. PeerJ (на језику: енглески). 9: e12104. doi:10.7717/peerj.12104 .