Examples from Herbert Jantschkes collection

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

"Alaria" cf. supraplicata Brösamlen, 1909; ox2 Bauhini-horizont, Oxfordian, upper Jurassic; Lochen area near Balingen, Baden-Württemberg State, Germany
Coll. Herbert Jantschke no. 2070, 761

• Comment Jean Joliaf: it might be a mould of a species from Pietteia (Trietteia) Conti et Szabo, 1987.

Trietteia sp.; Platynota-zone, "Weißjura gamma", Kimmeridgian, upper Jurassic; Dürbheim, Baden-Württemberg State, Germany; 25 mm; Coll. Herbert Jantschke