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Parastylostroma

Classification

    Phylum:  
Porifera
    Class:  
Stromatoporoidea
    Order:  
Labechiida
    Family:  
Platiferostromatidae
    Formal Genus Name and Reference:  
Parastylostroma BOGOYAVLENSKAYA, 1982a, p. 36
    Type Species:  
Stromatocerium irregularis VASSILYUK, 1966, p. 44, OD


Images

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Fig. 400, 1a-b. *P. irregularis (Vassilyuk), Famennian sequence, Porfirtovaya ravine, near Novotroitskoye village, Donbass, Ukraine, holotype, DPI 12/130, longitudinal and tangential sections, x5 (Vassilyuk, 1966, pl. 32, 8a-b).


Synonyms



Geographic Distribution

Russia (Northern Caucasus, Novaya Zemlya), Ukraine (Donets basin), Uzbekistan


Age Range

    Beginning Stage in Treatise Usage:  
Upper Devonian (Famennian)
    Beginning International Stage:  
Famennian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
371.1
    Ending Stage in Treatise Usage:  
Upper Devonian (Famennian)
    Ending International Stage:  
Famennian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
359.3


Description

Pillars are long, solid, rod- to platelike, longitudinal elements, and in places, branched, in tangential sections, outlines of pillars may be rounded, elongate, or meandering with short, lateral offsets, rare denticles occurring on tops of cyst plates, in most places, cyst plates are thin, flattened (long, low), or more gently convex to wavy, cyst plates usually maintain a relatively flattened to slightly sagging disposition between pillars, no astrorhizae seen. [The relationships between Parastylostroma and Vietnamostroma are discussed herein (see p. 732)].




References

Bogoyavlenskaya, O. V. 1982a. Stromatoporaty pozdnego devona-rannego karbona [Stromatoporates of the Late Devonian and Early Carboniferous]. Paleontologicheskiy Zhurnal 1982 (1):33-38, pl. 4, 2 tables.


Museum or Author Information

DPI, Vassilyuk, 1966