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Perissoptera Marginata

Stromboidea

• Aporrhaidae
  • Perissoptera
    • Perissoptera marginata (J. de C. Sowerby in Fitton, 1836)

Original Description of Rostellaria marginata by Sowerby in Fitton, 1836 , p. 336:

• "Fig. 18 Rostellaria marginata. Turrited, conical, transversely striated ribs, eight or ten upon each whorl, short and obtuse, last whorl keeled without ribs. Named from a ridge or narrow band upon the upper edge of each whorl, which is more or less conspicuous in every specimen and assists in distinguishing the species from Rostellaria Parkinsoni See PI XVIII fig 24."

Stratum typicum: Gault, Albian, Lower Cretaceous

Locus typicus: Copt Point, Folkestone, Great Britain

Rostellaria marginata Sowerby, 1836, pl. XI, fig. 18

Aporrhais marginata; Gault, Albian; Folkestone, Great Britain; Ex Coll. Gardner; Coll. BM(NH) No. G.66895-8, Copyright BM(NH)

Anchura (Perissoptera) marginata in Cossmann, 1904, pl. VI, fig. 3

Comment

• There has been a lot of confusion about this species. It is reviewed by
  • H. A. Kollmann (2005). Gastropodes Cretaces. Leiden, Backhuys Publishers, 1-239, 1-456, Pl.149-236.

Perissoptera marginata; Area Aube, Troyes, France; Albian, Cretaceous, 50 mm; Coll. Han Stoutjesdijk

Perissoptera marginata; middle Albian, H. dentatus zone, L- lyelli subzone; banc "B", Courcelles, Troyes, Aube, France

References

• Sowerby in Fitton, 1836