All available biological, ultrastructural, and molecular data support the conclusion that the cirripedian suborders, Rhizocephala and Thoracica, are closely related. Williamson’s speculations (Williamson, D. I., 2014. The origin of barnacles (Thecostraca, Cirripedia). Crustaceana, 87: 755-765) that the so-called hybridogenesis can explain how Rhizocephala evolved, rest on a selective choice of other authors’ data and an ignorance of solid facts derived from decades of comparative anatomical and molecular studies.
Comparative morphology and phylogeny of the family Thompsoniidae (Cirripedia, Rhizocephala, Akentrogonida) with description of three new genera and seven new species.
Perez-LosadaM.HøegJ. T.KolbasovG.CrandallK. A.2002.
Reanalysis of the relationships among the Cirripedia and the Ascothoracida and the phylogenetic position of the Facetotecta (Maxillopoda: Thecostraca) using 18SrDNA sequences.
J. Crust. Biol.22:
A study of the oviducal gland and ovisacs of Balanus balanoides (L.), together with comparative obserations on the ovisacs of Balanus hameri (Ascanius) and the reproductive biology of the two species.
Phil. Trans. Roy. Soc. Lond. (B)291: