Podrobnosti záznamu

Název
    New early Devonian gastropods from the families Crassimarginatidae (new family) and Scoliostomatidae (new family), Royal Creek Area, Yukon Territory, Canada
Údaj o odpovědnosti
    Jiří Frýda, Robert B. Blodgett, Alfred C. Lenz
Autor
    Blodgett, Robert B.
    Frýda, Jiří
    Lenz, Alfred C.
Jazyk
    anglicky
Zdrojový dokument - seriál
    Journal of paleontology
Svazek/č.
    Vol. 76, no. 2
Strany
    p. 246-255
Rok
    2002
Poznámky
    2 pl., 2 s.bibl.
    il.
    Zkr. název ser.: J. Paleont.
Předmětová skupina
    Barrandien
    devon-spodní
    Gastropoda
    nový taxon
    paleobiogeografie
    pražská pánev
Geografické jméno
    ČR-Čechy
    Kanada-Yukon
    Koněprusy (Beroun)
Klíčové slovo
    Area
    Canada
    Crassimarginatidae
    Creek
    Devonian
    Early
    Families
    Family
    Gastropods
    New
    Royal
    Scoliostomatidae
    Territory
    Yukon
Abstrakt (anglicky)
   Two new distinctive families, Crassimarginatidae and Scoliostomatidae, each characterized by unusual gerontic apertural morphotypes, are established on the basis of study of the richly diverse Lower Devonian gastropod fauna of the Road River Formation in the Royal Creek area, Yukon Territory. The Early Devonian genus Crassimarginata Jhaveri, 1969, is transferred from the family Palaeotrochidae and placed, together with the new genus Yukonoconcha, into the new family Crassimarginatidae, hich is characterized by a pupiform shell with an explanate outer apertural lip in the gerontic growth stage. The new family Scoliostomatidae unites Devonian gastropod genera (Scoliostoma Braun, 1838; Brilonella Kayser, 1873; Anarconcha Horný, 1964; Eoscoliostoma new genus; Mitchellia Koninck, 1877; and Pseudomitchellia new genus), which are characterized by a distinctive, free, twisted (both outwards and backwards) gerontic final half whorl.
   More detailed morphological comparison of members of this family has allowed their division into two new subfamilies: the Scoliostomatinae and Mitchelliinae. New genera include Yukonoconcha, Eoscoliostoma, and Pseudomitchellia. The former two genera are represented each by a single new species from Yukon Territory, Yukonoconcha pedderi and Eoscoliostoma norrisi. The latter genus is represented by two species, the type Pseudomitchellia bohemica (Perner) from the Koněprusy Limestone (Pragian) of the Czech Republic and Pseudomitchellia macqueeni new species from Yukon Territory
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (UNM)
Zdrojový formát
    U
Datum vložení
    21. 8. 2007
Datum importu
    8. 8. 2012