A morphological phylogenetic study, published in 2000, by Wägele & Willan showed that the subclade Gnathodoridacea (= Bathydoridoidea) and the subclade Doridacea (= Phanerobranchia + Cryptobranchia + Porostomata) each form a monophyletic group.[5]
In a later study, published in 2002, A. Valdés concluded that the superfamilies Doridoidea and Phyllidioidea (called by him Cryptobranchia + Porostomata) formed a clade. He expanded the usage of Cryptobranchia to encompass the whole subclade Doridacea.[6] This move was not followed in the taxonomy of Bouchet and Rocroi.
Taxonomy
clade Gnathodoridacea (synonym of Bathydoridoidei)
^Gofas, S. (2014). Euctenidiacea. Accessed through: World Register of Marine Species on 2015-02-12
^MolluscaBase (2019). Doridina. Accessed through: World Register of Marine Species on 2019-02-01.
^Bouchet P., Rocroi J.P., Hausdorf B., Kaim A., Kano Y., Nützel A., Parkhaev P., Schrödl M. & Strong E.E. (2017). Revised classification, nomenclator and typification of gastropod and monoplacophoran families. Malacologia. 61(1-2): 1-526.
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Belick F. P. (1975) "Additional opisthobranch mollusks from Oregon". The Veliger17(3): 276-277.
Goddard J. H. r. (1984) "The opisthobranchs of Cape Arago, Oregon, with notes on their biology and a summary of benthic opisthobranchs known from Oregon". The Veliger27(2): 143-163.
Lance J. R. (1967) "The holotype of the abyssal dorid nudibranch Bathydoris aoica Marcus & Marcus, 1962". The Veliger9(4): 410.
Marcus Ev. & Marcus Er. (1962) "A new species of the Gnathodoridacea". Anais da Academia Brasileira de Ciências34: 269-275.
Valdés Á. & Bertsch H. (2000) "Redescription and range extension of Bathydoris aioca Marcus & Marcus, 1962 (Nudibranchia: Gnathodoridoidea)". The Veliger43(2): 172-178.