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Species / Dicroloma Glandina

Dicroloma Glandina

  • Dicroloma glandina (Stoliczka, 1868)

Original description of Alaria glandina by Stoliczca, 1868:

  • "Al. testa acute-elongata, anfractibus numerosis, ad suturam posteriorem sensim constrictis, laevigatis, transversaliter costulatis: costulis acutis, obliquis, 8-12 in uno circuitu; spira ultimo anfractu (sine canali) longiore; ala simplici, falcata, postice ad peripheriam uncinata, acuta, interne anfractui penultimo affixa."
  • "The whorls are rather numerous in this species, when compared with its size, and are much constricted on the upper suture. The transverse ribs, which differ from 8-12 in number, are oblique and obsolete next the upper suture, similarly as in A. papilionacea, but they are always much sharper. No spiral striation is perceptible in any of our specimens, which are well preserved on the exterior surface. The anterior canal has not been seen perfect, but it could not have been of greater length than is indicated in the outline, and, including the last whorl, it had about the same height as the spire, consisting of all the preceding whorls. The wing is prolonged posteriorly into a rather long point and anteriorly simply curved towards the canal. Only a very slight sinus seems to have been present between the canal and the wing."

Localities. North of Alundanapooram and east of Anapaudy, south India

Stratum typicum: Trichinopoly Group, upper Cretaceous

Alaria glandina in Stoliczca, 1868, pl. II, fig. 14, 15

Dicroloma glandina (Stoliczka, 1868); upper Cretaceous; Manandany, Atsimo-Andrefana Region, Madagascar; Coll. MNHN no. R06527; Copyright Museum national d'Histoire naturelle Paris

Dicroloma glandina (Stoliczka, 1868); upper Cretaceous; Manandany, Atsimo-Andrefana Region, Madagascar; Coll. MNHN no. R06527; Copyright Museum national d'Histoire naturelle Paris

Dicroloma glandina (Stoliczka, 1868); upper Cretaceous; Manandany, Atsimo-Andrefana Region, Madagascar; 15 mm, 15.5 mm; Coll. MNHN no. R06527; Copyright Museum national d'Histoire naturelle Paris

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