Resolving phylogenetic and classical nomenclature: A revision of Seraphsidae Jung, 1974 (Gastropoda: Neostromboidae) Author Maxwell, Stephen J. 0000-0002-4328-6171 College of Science and Engineering, James Cook University, P. O. Box 6811, Cairns, Queensland 4870, Australia. & Stephen. maxwell @ my. jcu. edu. au; https: // orcid. org / 0000 - 0002 - 4328 - 6171 tephen.maxwell@my.jcu.edu.au Author Rymer, Tasmin L. 0000-0002-9963-6345 College of Science and Engineering, James Cook University, P. O. Box 6811, Cairns, Queensland 4870, Australia. & Centre for Tropical Environmental and Sustainability Sciences, James Cook University, P. O. Box 6811, Cairns, Queensland 4870, Australia. & Tamsin. rymer @ jcu. edu. au; https: // orcid. org / 0000 - 0002 - 9963 - 6345 amsin.rymer@jcu.edu.au Author Congdon, Bradley C. 0000-0002-8751-0892 College of Science and Engineering, James Cook University, P. O. Box 6811, Cairns, Queensland 4870, Australia. & Centre for Tropical Environmental and Sustainability Sciences, James Cook University, P. O. Box 6811, Cairns, Queensland 4870, Australia. & brad. congdon @ jcu. edu. au; https: // orcid. org / 0000 - 0002 - 8751 - 0892 brad.congdon@jcu.edu.au text Zootaxa 2021 2021-06-22 4990 3 401 453 journal article 5563 10.11646/zootaxa.4990.3.1 6a6dd89d-6b74-47ed-ba8e-71b526355b69 1175-5326 5026777 70610FEE-4497-4804-817C-CEC2D66DDBFE Miniseraphs Jung, 1974 [Maxwell, this paper] nomen cladi conversum ( Seraphsinae ) Figure 6B, C 1974 Miniseraphs Jung , p. 29. Caze et al. 2010 , p. 448 . Type . Terebellum ( Seraphs ) eratoides Cossmann, 1889 by orginal designation ( Jung 1974 ). RegNum Registration Number. 679. Reference Phylogeny. Figure 3 . Definition. The maximum clade consisting of Miniseraphs eratoides ( Cossmann, 1889 ) and all species that share a more recent common ancestor with it than with Seraphs sopitus ( Brander, 1766 ) , Diameza fragilis ( Defrance, 1825 ) or Terebellum terebellum ( Linnaeus, 1758 ) . Diagnosis. The shell is stout, involute, and has maximum width above mid-height. The posterior canal is absent. The labrum is undulating, extends to the spire, and has a wide apical angle. The suture is not channelled. The shell is smooth, with faint oblique grooves near the base of the columella. The columella is bent inwards at the base. Composition. Miniseraphs contains two species detailed herein, and belongs to the Seraphsinae , but excludes Diameza and Seraphs . Remarks. Geologically Miniseraphs is restricted to the Middle to early Eocene of Europe ( Jung 1974 ; Caze et al. 2010 ; Table 4). Miniseraphs has a strong biogeographical affinity to both Seraphs and Diameza , and is herein considered the intermediate descendant of both these complexes ( Jung 1974 ).