Record details

    Anuran Ilia from the Upper Cretaceous of Utah - Diversity and Stratigraphic Patterns
    Eaton, J. G.
    Gardner, J. D.
    Přikryl, Tomáš
    Roček, Zbyněk
Publication type
    část monografie (kapitola)
Source title - monograph
    At the Top of the Grand Staircase: The Late Cretaceous of Southern Utah
    S. 273-294
    Projekt: ME08066, GA MŠk3cav_un_auth*0241440
    Rozsah: 22 s. : E9656
Subject category
    Upper Cretaceous
Abstract (in english)
   Thanks to their relatively robust build and distinctive structure, isolated anuran ilia are among the most commonly recovered anuran bones from fossil micovertebrate sites. With some caveats, these features may be useful for assigning anuran ilia to biological taxa or, more conservatively, for estimating taxonomic diversities in fossil assemblages. A stratigraphically extensive sequence of 37 microvertebrate sites in southwestern Utah, U.S.A., has yielded a relatively large sample of about 180 anuran ilia. Tree major groups of ilia can be identified there. Although anuran ilia are not useful for stratigraphic correlations within the Utah sequence, but several interesting patterns are evident. The Utah ilia are typical for Mesozoic anurans in that none has a dorsal crest and only a minority have a dorsal tubercle; this contrasts with the situation in the Cenozoic, when most anurans have one or both of those iliac structures.
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
Import date
    23. 10. 2014