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Dicroloma Bicarinata

Stromboidea

• Aporrhaidae
  • Dicroloma
    • Dicroloma bicarinata (Münster in Goldfuss, 1844)

Comment Wieneke

• Rostellaria bicarinata Münster in Goldfuß, 1844 is a homonym of Rostellaria bicarinata Deshayes in Leymerie, 1842

Original Description of Rostellaria bicarinata by Münster in Goldfuss, 1844:

• "Rostellaria nucleo subturrito laevi, anfractibus (6) in medio carinatis, ultimo bicarinato, carinis acutis in digitos exeuntibus."

Locus typicus: Pappenheim, Bavaria State, Germany

Stratum typicum: "dichter Jurakalk", Jurassic

Original drawing of Rostellaria bicarinata by Goldfuss, 1844:

History and Synonymy

1909

Alaria bicarinata in Brösamlen, 1909, pl. XII, fig. 18, 19, 20 and 21

Specimens in institutional collections

Alaria bicarinata (Münster in Goldfuss, 1844); "Malm beta", Jurassic; Dreifaltigkeitsberg near Spaichingen, Baden-Württemberg State, Germany; Coll. Goldfuß-Museum Bonn; Copyright IPB

Alaria bicarinata (Münster in Goldfuss, 1844); "Malm gamma", Jurassic; Dürbheim, Dreifaltigkeitsberg near Spaichingen, Baden-Württemberg State, Germany; 18 mm; Coll. Goldfuß-Museum Bonn; Copyright IPB

Alaria bicarinata (Münster in Goldfuss, 1844); "Malm gamma", Jurassic; Wermlingen, Baden-Württemberg State, Germany; Coll. Goldfuß-Museum Bonn; Copyright IPB

Specimens in private collections

Dicroloma bicarinata (Münster in Goldfuss, 1844); "Malm", Jurassic; "Acker bei Ebermannstadt", Franconia, Bavaria state, Germany; Coll. Ewald Niehues

Dicroloma bicarinata (Münster in Goldfuss, 1844); "Malm &#945", upper Jurassic; "Acker", Franconia, Bavaria state, Germany; Coll. Ewald Niehues

Dicroloma cf. bicarinata (Münster in Goldfuss, 1844); "Malm", upper Jurassic; Franconia, Bavaria state, Germany; 2001; Coll. Ewald Niehues

Dicroloma cf. bicarinata (Münster in Goldfuss, 1844); Malm α, Jurassic; Franconia, Bavaria state, Germany; Coll. Ewald Niehues

• Comment Niehues: "Hangböschung Übergangbereich Schwamm-zur Bank-Fazies nach Wegbegradigung.Gesteinsbrocken aus dem Anstehenden gewonnen. Bei der Zerlegung konnten 14 Fossilien gewonnen werden u.a. Ammoniten (Trimarginites, Microbiplices, Perisphinctes und Tarmelliceras), sowie eine Bivalve (Nucula sp.) und die oben dargestellte Dicroloma. Aufgrund des Faunenspektrums ist von Fossilien aus dem oberen Malm α auszugehen."

Dicroloma cf. bicarinata (Münster in Goldfuss, 1844); ox2 bauhini-Horizont, Oxfordian, upper Jurassic; Lochen area near Balingen, Baden-Württemberg State, Germany; 1997; Coll. Herbert Jantschke no. 672, 1925

Dicroloma cf. bicarinata (Münster in Goldfuss, 1844); Kimmeridgian, upper Jurassic; Drügendorf, Upper Franconia, Bavaria State, Germany; 25 mm; Coll. Ulrich Wieneke

Collection Ulrich Wieneke

References:

• Brösamlen, 1909