Stromboidea

• Aporrhaidae
  • Undoriptera
    • Undoriptera tridactylus Guzhov, 2014

Undoriptera tridactylus Guzhov, 2014; Middle Volgian, Panderi Zone, scythicus biohorizon; village of Gorodishchi, Russia; 23 mm; Coll. PIN, no. 4814/182, photo Aleksandr Guzhov

Undoriptera tridactylus Guzhov, 2014; Middle Volgian, Panderi Zone, scythicus biohorizon; village of Gorodishchi, Russia; 20,5 mm; Coll. PIN, no. 4814/183, photo Aleksandr Guzhov

Undoriptera tridactylus Guzhov, 2014; Virgatus zone, Rosanovi subzone, Middle Volgian, Jurassic; Ravine in Suvorovskiy Park, right bank of the Moskva River, Kuntsevo District, Moscow, Russia; H. 1.95 mm.; Coll. Kirill Shapovalo

References

• A.V. Guzhov, 2014. Kimmeridgian–Volgian Aporrhaidae (Stromboidea: Gastropoda) of the Russian Platform, Paleontological Journal, 2014, Vol. 48 no. 3, pp. 234–241, [Paleontologicheskii Zhurnal, 2014 no. 3, pp. 19–26]