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Halorelloidea

Classification

    Phylum:  
Brachiopoda
    Subphylum:  
Rhynchonelliformea
    Class:  
Rhynchonellata
    Order:  
Rhynchonellida
    Superfamily:  
Dimerelloidea
    Family:  
Halorellidae?
    Formal Genus Name and Reference:  
Halorelloidea AGER, 1960, p. 159
    Type Species:  
Halorella rectifrons BITTNER, 1884, p. 107, OD


Images

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Fossil Image
Fig. 847, 2a-p. * H. rectifrons (Bittner), Pamirs, a-b, dorsal, anterior views, IGiG 200/32, x1, c-p, transverse serial sections, distances in mm, 0.3, 0.8, 1.3, 1.6, 2.0, 2.3, 2.5, 2.9, 3.2, 3.5, 3.9, 4.3, 4.6, 4.9 (Dagys, 1963).


Synonyms



Geographic Distribution

eastern Alps, Carpathians, Italy (Sicily), Pamirs, Himalayas, Indonesia (Seran), Primorye


Age Range

    Beginning Stage in Treatise Usage:  
Upper Triassic (Norian)
    Beginning International Stage:  
Norian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
227.3
    Ending Stage in Treatise Usage:  
Upper Triassic (Norian)
    Ending International Stage:  
Norian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
205.74


Description

Similar to Halorella but smooth or with low, rounded costae, Dental plates subparallel, pedicle collar present, septum and septalium absent, crura long, curved ventrally, ciliform




References



Museum or Author Information

IGiG, Dagys, 1963