Record details

Title
    The systematic position of the Euomphalidae (Gastropoda)
Statement of responsibility
    Klaus Bandel, Jiří Frýda
Author
    Bandel, Klaus
    Frýda, Jiří
Language
    anglicky
Source title - serial
    Senckenbergiana lethaea
Vol./nr.
    Vol. 78, no. 1-2
Pages
    p. 103-131
Year
    1998
Notes
    1 obr., 5 pl., 3 s.bibl.
    Zkr. název ser.: Senckenberg. lethaea.
Subject group
    devon
    Gastropoda
    karbon
    nový taxon
    paleozoikum
    popis taxonů
    schránky
    taxonomie
Geographical name
    Belgie
    SRN
    USA
Keyword
    Euomphalidae
    Gastropoda
    Position
    Systematic
Abstract (in english)
   The core group of Euomphalidae with the genera Euomphalus, Straparollus, Serpulospira, Phymatifer, Schizostoma, Nodeuomphalus n.g. (Devonian to Permian) are characterized by a cyrtoconic, openly coiled, planispiral protoconch. This character distinguishes them from members of the four extant subclasses of the Gastropoda (Archaeogastropoda, Neritimorpha, Caenogastropoda and Heterostropha) and places the Euomphaloidea at similarly high taxonomic level, the new subclass Euomphalomorpha. With Euomphalopsis the group may have made its first appearance in the Late Cambrian, and it is certainly present from the Mid Devonian to Late Permian and thus he range is about 300 million years in duration. Throughout the existence of the Euomphaloidea other gastropod units developed convergent shell forms which can be detected by the morphology of the protoconch and, in well preserved fossils, the mineralogical and structural composition of the shell. The new taxa Euomphalomorpha n.
   subclassis, Nodeuomphalus n.g., N. paffrathianus n.sp., and "Planerotinus" scheeri n.sp. are described
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    31. 3. 2008
Import date
    8. 8. 2012