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Dictyocyathus

Classification

    Phylum:  
Porifera
    Class:  
Archaeocyatha
    Order:  
Archaeocyathida
    Suborder:  
Archaeocyathina
    Superfamily:  
Dictyocyathoidea
    Family:  
Dictyocyathidae
    Formal Genus Name and Reference:  
Dictyocyathus BORNEMANN, 1891a, p. 500
    Type Species:  
D. tenerrimus, M, lectotype, Bornemann, 1891a, pl. 42, 5, pl. 43, 4-6, SD Debrenne, 1964, p. 200, not located, =Coscinocyathus verticillus Bornemann, 1886, p. 65, lectotype, Bornemann, 1886, pl. 15, 3 g, Debrenne, 1964, pl. 34, 5, SD DEBRENNE, 1964, p. 205, GML 899c, Halle


Images

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Fig. 621,1a–b. *D. verticillus (Bornemann), Matoppa Formation, Botoman, Cuccuru Contu, Sardinia, Italy; a, topotype, MNHN M84248, specimen CCC 9-1a, oblique longitudinal section, X6 (Debrenne, Zhuravlev, & Kruse, 2002); b, lectotype, GML 899c, transverse section, X6 (Debrenne, 1964).


Synonyms

Prismocyathus, Spongiosicyathus, Prismocyathellus, Prismocyathus


Geographic Distribution

Siberian Platform, Kolyma, Altay Sayan, Tuva, Mongolia, Far East, Kazakhstan, South China, Morocco, Iberia, Sardinia, Germany, Tommotian 2–Botomian 1; Antarctica, Guzhangian


Age Range

    Beginning Stage in Treatise Usage:  
lower Cambrian (Tommotian 2)
    Beginning International Stage:  
Cambrian Stage 2
    Fraction Up In Beginning Stage:  
63
    Beginning Date:  
523.96
    Ending Stage in Treatise Usage:  
middle Cambrian (Guzhangian)
    Ending International Stage:  
Guzhangian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
497


Description

Outer wall basic, inner wall with one row of simple pores per intersept, dictyonal network




References

Bornemann, J. G. 1891a. Die Versteinerungen des cambrischen Schichtensystem der Insel Sardinien. Zweite Abteilung. Nachschrift, III. Archaeocyathinae. Nova Acta Academiae Caesareae Leopoldino-Carolinae Germanicae Naturae Curiosorum 56 (1):495-500 (71-76), pl. 42-43.


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