Paleontological Journal

, Volume 40, Issue 1, pp 34–45 | Cite as

Gastropod mollusks from the Hauterivian of Ulyanovsk (Volga Region): 1. Family aporrhaidae

  • I. V. Blagovetshenskiy
  • I. A. Shumilkin


Data on the detailed stratigraphic range of eight species of gastropod mollusks from the Upper Hauterivian of Ulyanovsk (Volga Region) are presented. A new genus, Trilemma, is established within the family Aporrhaidae. Two new species of this genus, T. russiense sp. nov. and T. striatocarinatum (Sinzow, 1880), are described.

Key words

gastropods Upper Hauterivian Ulyanovsk Volga Region 


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Copyright information

© Pleiades Publishing, Inc. 2006

Authors and Affiliations

  • I. V. Blagovetshenskiy
    • 1
  • I. A. Shumilkin
    • 1
  1. 1.Ulyanovsk State UniversityUl’yanovskRussia

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