Podrobnosti záznamu

Název
    New Porcellioidean gastropods from Early Devonian of Royal Creek area, Yukon Territory, Canada, with notes on their early phylogeny
Další názvy
    Noví porcellidní gastropodi z devonu oblasti Royal Creek (Yukon Territory, Canada) s poznamkami o jejich fyogenezi
Autor
    Blodgett, R.
    Frýda, Jiří
    Lenz, A.
    Manda, Štěpán
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Journal of Paleontology
Svazek/č.
    Roč. 82, č. 3
Strany
    9
Rok
    2008
Výraz tezauru
    Devonian Gastropoda
Klíčové slovo
    Area
    Canada
    Creek
    Devonian
    Early
    Gastropods
    New
    Notes
    Phylogeny
    Porcellioidean
    Royal
    Territory
    Yukon
Abstrakt (česky)
   Jsou popsáni noví porcellidní gastropodi z devonu oblasti Royal Creek (Yukon Territory, Canada).
Abstrakt (anglicky)
   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.
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (RIV)
Zdrojový formát
    R
Datum importu
    15. 10. 2014