Record details

    New Porcellioidean gastropods from Early Devonian of Royal Creek area, Yukon Territory, Canada, with notes on their early phylogeny
Other titles
    Noví porcellidní gastropodi z devonu oblasti Royal Creek (Yukon Territory, Canada) s poznamkami o jejich fyogenezi
    Blodgett, R.
    Frýda, Jiří
    Lenz, A.
    Manda, Štěpán
Publication type
    článek v periodiku
Source title - serial
    Journal of Paleontology
    Roč. 82, č. 3
Thesaurus term
    Devonian Gastropoda
Abstract (in czech)
   Jsou popsáni noví porcellidní gastropodi z devonu oblasti Royal Creek (Yukon Territory, Canada).
Abstract (in english)
   This paper presents a description of new gastropods belonging to the superfamily Porcellioidea (Vetigastropoda) from the richly diverse Lower Devonian gastropod fauna of the Road River Formation in the Royal Creek area, Yukon Territory. The Pragian species Porcellia (Porcellia) yukonensis n. sp. and Porcellia (Paraporcellia) sp. represent the oldest presently known members of subgenera Porcellia (Porcellia) and Porcellia (Paraporcellia). Their simple shell ornamentation fits well with an earlier described evolutionary trend in shell morphology of the Porcellinae. Late Pragian to early Emsian Perryconcha pulchra n. gen. and n. sp. is the first member of the Porcellioidea bearing a row of tremata on adult teleoconch whorls. The occurrence of this shell feature in the Porcellioidea is additional evidence that the evolution of the apertural slit was much more complicated than has been proposed in classical models of Paleozoic gastropod evolution.
    Česká geologická služba
Contributor code
    ČGS (RIV)
Source format
Import date
    15. 10. 2014