Paraseraphs armoricensis ( Cossmann, 1897 )

Maxwell, Stephen J., Rymer, Tasmin L. & Congdon, Bradley C., 2021, Resolving phylogenetic and classical nomenclature: A revision of Seraphsidae Jung, 1974 (Gastropoda: Neostromboidae), Zootaxa 4990 (3), pp. 401-453 : 428

Paraseraphs armoricensis ( Cossmann, 1897)

Figure 7B

1856 Terebellum cylindricum Cailliaud , p. 42. Jung 1974, p. 34. Caze et al. 2010, p. 459.

1881 Terebellum armoricum Vasseur , pp. 174, 245 (nomen nudum). Jung 1974, p. 36. Caze et al. 2010, p. 459. = Terebellum armoricensis Vasseur — Jung 1974, p. 36. = Terebellum armoricus Vasseur — Caze et al. 2010, p. 456, figs. 29A–C, 30. = Terebellum fusiforme armorica Vasseur — Sacco 1893, p. 21.

1897 Terebellum armoricense Cossmann , p. 340, pl. 8, figs. 10, 15. Caze et al. 2010, p. 459. = Terebellum armoricensis Cossmann — Jung 1974, p. 34. = Paraseraphs armoricensis Cossmann — Jung 1974, p. 36, pl. 9, figs. 19–25, tf. 28, p. 37, pl. 11, figs. 1–6. Caze et al. 2010, p. 459.

Terebellum fusiforme Lamarck — de Gregorio 1880, p. 20. Jung 1974, p. 36. = Terebellum fusiforme Sowerby — Tennant 1847, p. 34. = Terebellum fusiforme Cuvillier — Jung 1974, p. 36.

Type material. Holotype — Cossmann 1897, p. 340, pl. 8, figs. 10, 15. The type measures 73 mm in length and 13 mm in width ( Cossmann 1897).

Type locality. Bois-Gouët , France [Bartonian] .

Diagnosis. The shell is slender with fine spiral lines, with 2.5 protoconch whorls. The labial callus is moderately well-developed. The labrum is not thickened. The posterior canal is moderately antispiral continuing to the apex. The columella is bent backward basally.

Distribution. EOCENE— England London Clays ( Tennant 1847). Bartonian— France Bois-Gouët, Loire-Atlantique ( Jung 1974; Caze et al. 2010); Arthon, Loire-Atlantique ( Caze et al. 2010); Blaye, Gironde ( Caze et al. 2010). Ypresian— Italy northern regions ( Jung 1974); San Giovanni Ilarione ( de Gregorio 1880).

Remarks. This species is recognisable for its long slender shape, which is in contrast to other members of the European Paraseraphs . While similar to P. cantamessae , it differs in geological setting.

Figures

FIGURE 7. Paraseraphs Jung, 1974. A. Paraseraphs ameri (Abbass, 1967), Holotype, EMC, Gastropod Section, G363, incomplete (Abbass 1967, p. 61, pl. VIII, fig. 6). B. Paraseraphs armoricensis (Cossmann, 1897), Dumas Collection, length 22.7 mm (Jung 1974, pl. 10, figs. 16–18). C. Paraseraphs cantamessae Maxwell et al., 2018a, holotype, USNM 135097A, length 56.9 mm (Maxwell et al. 2018a, fig. 1). D. Paraseraphs erraticus (Cooper, 1894)), UCMP 15820, length 26.8 mm (Jung 1974, pl. 12, figs. 8–10). E. Paraseraphs placitus Jung, 1974, holotype, NMB H14491, length 22.7 mm (Jung 1974, pl. 10, figs. 16–18). F. Paraseraphs praecedens Caze et al., 2010, holotype, MNHN A05707, Collection de Paleontologie, Paris, length 19 mm (Caze et al. 2010, figs. 29E, F). G. Paraseraphs procerus (Merian, 1844), holotype, NMB H14374, length 71.8 mm (Jung 1974, pl. 12, figs. 1, 2). H. Paraseraphs propedistortus (de Gregorio, 1880), NMB H14509, length 53.2 mm (Jung 1974, pl. 11, figs. 12–13). I. Paraseraphs tetanus Jung, 1974, holotype, NMB H15409, length 28.7 mm (Jung 1974, pl. 10, figs. 5–7). J) Paraseraphs texanopsis Garvie, 2013, Texas Natural Science Centre, UT(Austin), NPL46617, length 53.3 mm (Garvie 2013, pl. 1, figs. 10, 11).