Paraseraphs cantamessae Maxwell, Rymer & Congdon, 2018

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 : 428-429

Paraseraphs cantamessae Maxwell, Rymer & Congdon, 2018

Figure 7C

1974 Paraseraphs cf. armoricensis Cossmann — Jung 1974, p. 37, pl. 11, figs. 1–6.

2018 Paraseraphs cantamessae Maxwell, Rymer & Congdon , p. 37, fig. 1.

Type material. Holotype — USNM 135097 A. The type measures 56.9 mm in length and 11.6 mm in width ( Maxwell et al. 2018a).

Type locality. White Limestone Group , Port Antonio, Jamaica [Priabonian] .

Diagnosis. The shell is very slender with slightly concave whorls. There is a distinctive elongation of the shell on later whorls. The base of the shell is anteriorly quadrate. The shell spire is acute.

Distribution. EOCENE—Priabonian— Jamaica Port Antonio ( Jung 1974).

Remarks. Paraseraphs cantamessae is comprised of eight specimens, which are internal casts. The shape of P.

cantamessae is much narrower than the larger and more dorso-ventrally convex P. procerus ( Merian, 1844) , which shares a similar geological record. P. cantamessae is similar to other Paraseraphs from Europe, and particularly to P. armoricensis ( Cossmann, 1897) , and was likened to that taxon by Jung (1974), but occurs after that species disappears during the Bartonian. Paraseraphs canatemessae is similar also to P. propedistortus ( de Gregorio, 1880) , being slender with an acute spire, but the latter is restricted to the Lutetian of the Mediterranean.

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).