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Granularia

Classification

    Phylum:  
Trace Fossils and Problematica
    Class:  
Trace Fossils
    Formal Genus Name and Reference:  
Granularia POMEL, 1849, p. 333
    Type Species:  
Algacites granulatus von SCHLOTHEIM, 1822, p. 45, "OD"


Images

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Fossil ImageFossil Image
Fig. 40,3a. G. sp. cf. G. arcuata Schimper, L.Tert.Alberese, Italy, X1.25 (Reis, 1909). -- Fig. 40,3b. G. lumbricoides (Heer), L.Tert. (Alberese), Italy, X1.25 (Reis, 1909)


Synonyms

Alcyonidiopsis


Geographic Distribution

Sil., Australia, M.Jur., Eng., Cret.-L.Tert., Eu. [Found in flysch deposits.].


Age Range

    Beginning Stage in Treatise Usage:  
Sil., M.Jur.
    Beginning International Stage:  
Rhuddanian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
443.07
    Ending Stage in Treatise Usage:  
L.Tert.
    Ending International Stage:  
Chattian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
23.04


Description

Elongated fillings of burrows; long, diameter up to about 15 mm, twig-shaped, with rather regular branching; walls originally lined with clay particles; burrows observed by SElLACHER (1962, p. 228) in flysch deposits of Spain which are up to several meters thick. [BATHER (1911, p. 555) wrote erroneously that "Granularia was established by POMEL (1847) with G. repanda as genotype"; POMEL described six "species" and he founded Granularia on Algacites granulatus, the same species on which BRONGNIART (1849) founded his "genus" Phymatoderma; for discussion of somewhat confused synonymy and nomenclature see also ROTHPLETZ (1896, p. 889).] [Found in flysch deposits.]




References



Museum or Author Information

Reis, 1909, Reis, 1909