Seraphs olivaceus ( Cossmann, 1889 )

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 : 415

Seraphs olivaceus ( Cossmann, 1889)

Figure 5C

1889 Terebellum (Seraphs) olivaceum Cossmann , p. 93, pl. 3, figs. 1, 2. Jung 1974, p. 21. Caze et al. 2010, p. 430. = Seraphs (Seraphs) olivaceus Cossmann — Jung 1974, p. 21, pl. 5, figs. 5–11, tf. 15. = Terebellum (Seraphs) olivaceus Cossmann — Caze et al. 2010, p. 430. = Seraphs olivaceus Cossmann — Caze et al. 2010, p. 430, figs. 6H–J, 10.

1933 Terebellum dautzenbergi Cuvillier , p. 46, pl. 6, figs. 3, 4. Jung 1974, p. 45.

Terebellum (Seraphs) fusiforme Lamarck — Tessier 1952, p. 374, pl. XXXII, figs. 16–18. Jung 1974, p. 21, pl. 5, figs. 10, 11.

Type material. Neotype — MNHN A28885 , was erected by Caze et al. (2010) to clarify the taxonomic status, given that the Cossmann (1889) type is missing. The latter specimen measures 32 mm in length, with a width of 9 mm according to Jung (1974).

Type locality. Chaussy , France [Lutetian] .

Diagnosis. The shell is moderately slender with straight sides with the widest part being just below the adapical end of the aperture. The apex is acute. The surface of the shell is smooth with faint sinuous growth lines. The labial callus is not well-developed and is inconspicuous. The labrum is not thickened, and has a sinuous profile. The columella is bent backward near the base. The base of the labrum does not extend as far as the end of the columella.

Distribution. EOCENE—Lutetian— France Chaussy, Val d’Oise ( Jung 1974; Caze et al. 2010); Fercourt, Oise, Mouchy-le-Châtel, Oise ( Caze et al. 2010); Parnes, Oise ( Jung 1974; Caze et al. 2010); Fontenay-en-Vexin, Eure ( Caze et al. 2010); Chaussy Vaudancourt ( Jung 1974); Parnes ( Jung 1974); Sondage de Tivsouane ( Tessier 1952) Beronkhout ( Tessier 1952) Thiès-Saint–Louis ( Tessier 1952) Teugge ( Tessier 1952). Italy Piana, west of Schio ( Jung 1974). Egypt Gebalmakattam ( Cuvillier 1933).

Remarks. The Egyptian Terebellum dautzenbergi is based on material from the Lutetian of Gebel Mokattam, near Cairo ( Jung 1974). This taxon is represented by a single internal cast that Jung (1974) likened to Seraphs olivaceus ( Cossmann, 1889) and concluded that it may be that species. I herein incorporated T. dautzenbergi within the synonymy of Seraphs olivaceum , but T. dautzenbergi remains somewhat unresolved, requiring additional material to allow greater taxonomic resolution.

Figures

FIGURE 5. Seraphs Montfort, 1810. A. Seraphs minus (Vincent, 1913), length 7.1 mm (Jung 1974, pl. 6, figs. 9, 10). B. Seraphs naricus (Vredenberg, 1925), holotype, GSI 12614, length 38.6 mm (Jung 1974, pl. 6, figs. 20–22). C. Seraphs olivaceus (Cossmann, 1889), MNHN A28577, Collection de Paleontologie, Paris, length 32 mm (Caze et al. 2010, figs. 6H, I). D. Seraphs peterjungi Caze et al., 2010, holotype, MNHN A28578, Collection de Paleontologie, length 16 mm (Caze et al. 2010, figs. 15J, K, N). E. Seraphs placiferus (Bayan, 1870), lectotype, MNHN G2100, length 33.7 mm (Jung 1974, pl. 7, figs. 5–7). F. Seraphs sopita (Brander, 1766), lectotype, NHMUK GG21010, length 26.4 mm (Jung 1974, pl. 1, figs. 1–3). G. Seraphs squamosus (Martin, 1914), Lectotype, RGM, Leiden St10344, length 37.1 mm (Jung 1974, pl. 6, figs. 17–19). H. Seraphs striatus (von Koenen, 1889), holotype, length 38.5 mm (von Koenen 1889, pl. I, figs. 7A–C). I. Seraphs subconvolutus (d’Orbigny, 1852), lectotype, MNHN UBT65-2-120, length 28 mm (Caze et al. 2010, figs. 14A, B). J. Seraphs volutatus (Brander, 1766), MNHN A28776, Collection de Paleontologie, Paris, length 17 mm (Caze et al. 2010, figs. 6A–C).