Molecular parataxonomy as taxon description: examples from recently named Zoanthidea (Cnidaria: Anthozoa) with revision based on serial histology of microanatomy Author Swain, Timothy D. Author Swain, Laura M. text Zootaxa 2014 3796 1 81 107 journal article 45769 10.11646/zootaxa.3796.1.4 29627432-0fba-4bb2-8bad-142d6fdbbde5 1175-5326 251140 66323922-2C76-4AB7-98E6-59205AF86DBA Suborder Brachycnemina Haddon & Shackleton, 1891 Zoanthidea with imperfect fifth mesenteries ( Haddon & Shackleton 1891 ). The defining character (imperfect fifth mesenteries) is synapomorphic and the suborder Brachycnemina is monophyletic ( Swain 2010 ).