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Protopharetra

Classification

    Phylum:  
Porifera
    Class:  
Archaeocyatha
    Order:  
Archaeocyathida
    Superfamily:  
Archaeocyathoidea
    Family:  
Archaeopharetridae
    Formal Genus Name and Reference:  
Protopharetra BORNEMANN, 1884, p. 705
    Type Species:  
P. polymorpha Bornemann, 1886, p. 46, SD Simon, 1939, p. 34, lectotype, Bornemann, 1886, pl. 5, fig. 4 bottom, SD SIMON, 1939, p. 35, not located, topotypes, MNHN M84120, specimens CGR3/3, GLA3.3, GLC10.II.1b, Paris


Images

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Fossil Image
Fig. 628a-c. * P. polymorpha, Matoppa Formation, Botoman, Canal Grande, Sardinia, Italy, a, topotype, MNHN M84120, transverse section of modular skeleton, X3 (Debrenne, Zhuravlev, & Kruse, 2002), b, lectotype, transverse section, X3 (Bornemann, 1886), c, topotype, MNHN M84120, detail of outer wall in tangential section, X7 (Debrenne, Zhuravlev, & Kruse, 2002).


Synonyms

Volvacyathus


Geographic Distribution

Altay Sayan, Tuva, Far East, Tajikistan, Canada, United States, Morocco, Iberia, France, Sardinia, Germany


Age Range

    Beginning Stage in Treatise Usage:  
lower Cambrian (Atdabanian 1)
    Beginning International Stage:  
Cambrian Stage 3
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
521
    Ending Stage in Treatise Usage:  
lower Cambrian (Botomian 3)
    Ending International Stage:  
Cambrian Stage 4
    Fraction Up In Ending Stage:  
25
    Ending Date:  
513.13


Description

Inner wall with one row of simple pores per intersept, taeniae coarsely porous, linked by rare synapticulae




References

Bornemann, J. G. 1884. Bericht über die Fortsetzung seiner Untersuchungen cambrischer Archaeocyathus: Formen und verwandter Organismen von der Insel Sardinien. Deutsche Geologische Gesellschaft, Zeitschrift 36:702-706.


Museum or Author Information

MNHN, Debrenne, Zhuravlev, & Kruse, 2002, Bornemann, 1886, Debrenne, Zhuravlev, & Kruse, 2002