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Platiferostroma
Classification
Phylum:
Porifera
Class:
Stromatoporoidea
Order:
Labechiida
Family:
Platiferostromatidae
Formal Genus Name and Reference:
Platiferostroma Khalfina & YAVORSKY, 1973, p. 32
Type Species:
Stromatocerium hybridum DONG, 1964, p. 284 294, pl. 2, 3-8, OD; some discrepancies exist between catalogue numbers marked on thin sections of types of P. hybridum housed in Nanjing collections, and published registration numbers cited in descriptions and captions of plates published by Dong (1964); a few details are noted below
Images
(Click to enlarge in a new window)
Fig. 398,1a–d. *P. hybridium (Dong), lower part of Shizixu Formation, between Huangjin and Muliu, Luocheng County, Guangxi Province, X5; a, holotype, NIGP Kw044-3 (14167), longitudinal section showing pillars of variable thickness, and in places, forklike branches and small- to moderate-sized, upwardly convex cyst plates (this specimen is recorded as aparatype; Dong, 1964, pl. 2,5); b, paratype, NIGP Kw044-2 (14170), tangential section showing dark-colored, irregular, elongate, flanged, meandering, sinuous, and rarely small-rounded outlines of pillars and patchy development of finer, obliquely intersected cyst plates (this specimen is recorded as part of the holotype; Dong, 1964, pl. 2,4; 2001, pl. 19,2); c, doubtful holotype, NIGP Kw044-3 (14168), oblique section showing mainly elongate to irregularly meandering pillars and cyst plates (Webby, 2012c; courtesy of Dong De-yuan); d, paratype, NIGP Kw044-2 (14169), longitudinal section showing long pillars that are thickened and branched in places, and vaguely aligned, imbricated rows of small, upwardly convex cyst plates (this figure was recorded as part of holotype; Dong, 1964, pl. 2,3; 2001, pl. 19,1).
Synonyms
Geographic Distribution
Australia (Bonaparte basin), China (Guangxi, Guizhou, Sichuan, Hunan), Vietnam, 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 long, continuous, intermittently branched, platelike, elements that may be moderately widely spaced and/or of varying thickness, dependent on orientation of pillarlike plates where intersected in longitudinal section, and proximity to a branch, in tangential section outlines are mainly irregularly elongate to meandriform, though a few, small, rounded or more complexly flanged offsets, even incompletely fused polygonal meshworks, may also be shown, cyst plates are thin and enclose numerous, variably sized (mainly small), convex-upward, imbricated cysts across interspaces between pillars, with rows not noticeably upflexed adjacent to pillars.
References
Khalfina, V. K., & V. I. Yavorsky. 1973. Klassificatsiia stromatoporoidea [Classification of the stromatoporoids]. Paleontologicheskiy Zhurnal 1973 (2):19-34.
Museum or Author Information
Classification
Phylum:
Porifera
Class:
Stromatoporoidea
Order:
Labechiida
Family:
Platiferostromatidae
Formal Genus Name and Reference:
Platiferostroma Khalfina & YAVORSKY, 1973, p. 32
Type Species:
Stromatocerium hybridum DONG, 1964, p. 284 294, pl. 2, 3-8, OD; some discrepancies exist between catalogue numbers marked on thin sections of types of P. hybridum housed in Nanjing collections, and published registration numbers cited in descriptions and captions of plates published by Dong (1964); a few details are noted below
Images
(Click to enlarge in a new window)
Fig. 398,1a–d. *P. hybridium (Dong), lower part of Shizixu Formation, between Huangjin and Muliu, Luocheng County, Guangxi Province, X5; a, holotype, NIGP Kw044-3 (14167), longitudinal section showing pillars of variable thickness, and in places, forklike branches and small- to moderate-sized, upwardly convex cyst plates (this specimen is recorded as aparatype; Dong, 1964, pl. 2,5); b, paratype, NIGP Kw044-2 (14170), tangential section showing dark-colored, irregular, elongate, flanged, meandering, sinuous, and rarely small-rounded outlines of pillars and patchy development of finer, obliquely intersected cyst plates (this specimen is recorded as part of the holotype; Dong, 1964, pl. 2,4; 2001, pl. 19,2); c, doubtful holotype, NIGP Kw044-3 (14168), oblique section showing mainly elongate to irregularly meandering pillars and cyst plates (Webby, 2012c; courtesy of Dong De-yuan); d, paratype, NIGP Kw044-2 (14169), longitudinal section showing long pillars that are thickened and branched in places, and vaguely aligned, imbricated rows of small, upwardly convex cyst plates (this figure was recorded as part of holotype; Dong, 1964, pl. 2,3; 2001, pl. 19,1).
Synonyms
Geographic Distribution
Australia (Bonaparte basin), China (Guangxi, Guizhou, Sichuan, Hunan), Vietnam, 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 long, continuous, intermittently branched, platelike, elements that may be moderately widely spaced and/or of varying thickness, dependent on orientation of pillarlike plates where intersected in longitudinal section, and proximity to a branch, in tangential section outlines are mainly irregularly elongate to meandriform, though a few, small, rounded or more complexly flanged offsets, even incompletely fused polygonal meshworks, may also be shown, cyst plates are thin and enclose numerous, variably sized (mainly small), convex-upward, imbricated cysts across interspaces between pillars, with rows not noticeably upflexed adjacent to pillars.
References
Khalfina, V. K., & V. I. Yavorsky. 1973. Klassificatsiia stromatoporoidea [Classification of the stromatoporoids]. Paleontologicheskiy Zhurnal 1973 (2):19-34.