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Simplexodictyon
Classification
Phylum:
Porifera
Class:
Stromatoporoidea
Order:
Stromatoporellida
Family:
Stromatoporellidae
Formal Genus Name and Reference:
Simplexodictyon BOGOYAVLENSKAYA, 1965b, p. 110
Type Species:
Clathrodictyon regulare var. nov. Yavorsky, 1929, p. 83, OD, CNIGR 2595/30 (6), =C. regulare podolica Yavorsky, 1955, p. 43, see STEARN, 1991, for full discussion of the type. Although some authors have attributed the varietal name podolica to YAVORSKY, 1929, it was not formally proposed until 1955
Images
(Click to enlarge in a new window)
Fig. 438a–c. *S. podolicum (YavorSKY), holotype, Ludlow, Smotrich River, Ukraine; a, longitudinal section, X10; b, topotype, tangential section, X10 (Stearn, 2011b); c, longitudinal section, X10 (Yavorsky, 1929). --Fig. 438d. S. vermiformis (Stearn & Mehrotra, 1970), Eifelian, Blue Fiord Formation, Cameron Island, Canada, GSC 116284, longitudinal section, showing separated laminae, X10 (Stearn, 2011b).
Synonyms
Diplostroma, Nuratadictyon
Geographic Distribution
Estonia (Saaremao), Russia (Moiero River, Siberian platform), USA (Kentucky), Wenlock; Australia (Queensland), Central Asia (Tien Shan), Estonia, Russia (Salair, Altai), Ukraine (Podolia), Ludlow; Australia (Victoria, northern Queensland), Emsian; Canada (Arctic Island, Yukon), Eifelian
Age Range
Beginning Stage in Treatise Usage:
Silurian (Wenlock)
Beginning International Stage:
Sheinwoodian
Fraction Up In Beginning Stage:
0
Beginning Date:
432.93
Ending Stage in Treatise Usage:
Middle Devonian (Eifelian)
Ending International Stage:
Eifelian
Fraction Up In Ending Stage:
100
Ending Date:
385.3
Description
Laminae extensive, composed of two compact layers separated (in the same skeleton) by either or all of 1) spar cement, 2) sediment, 3) epibionts, 4) a line of cellules, or fused into a single layer. Pillars compact, simple, postlike, commonly incomplete or oblique.
References
Bogoyavlenskaya, O. V. 1965b. O taksonomicheskom znachenii astroriz u stromatoporoidei [On the taxonomic significance of the astrorhizae in the stromatoporoids]. In B. S. Sokolov & V. N. Dubatolov, eds., Tabuliatomorfnye korally devona i carbona SSSR. Trudy Vsesoiuznogo simpoziuma po izucheniiu iskopaemykh korallov, vypusk 2 [Tabulatomorph
Museum or Author Information
Classification
Phylum:
Porifera
Class:
Stromatoporoidea
Order:
Stromatoporellida
Family:
Stromatoporellidae
Formal Genus Name and Reference:
Simplexodictyon BOGOYAVLENSKAYA, 1965b, p. 110
Type Species:
Clathrodictyon regulare var. nov. Yavorsky, 1929, p. 83, OD, CNIGR 2595/30 (6), =C. regulare podolica Yavorsky, 1955, p. 43, see STEARN, 1991, for full discussion of the type. Although some authors have attributed the varietal name podolica to YAVORSKY, 1929, it was not formally proposed until 1955
Images
(Click to enlarge in a new window)
Fig. 438a–c. *S. podolicum (YavorSKY), holotype, Ludlow, Smotrich River, Ukraine; a, longitudinal section, X10; b, topotype, tangential section, X10 (Stearn, 2011b); c, longitudinal section, X10 (Yavorsky, 1929). --Fig. 438d. S. vermiformis (Stearn & Mehrotra, 1970), Eifelian, Blue Fiord Formation, Cameron Island, Canada, GSC 116284, longitudinal section, showing separated laminae, X10 (Stearn, 2011b).
Synonyms
Diplostroma, Nuratadictyon
Geographic Distribution
Estonia (Saaremao), Russia (Moiero River, Siberian platform), USA (Kentucky), Wenlock; Australia (Queensland), Central Asia (Tien Shan), Estonia, Russia (Salair, Altai), Ukraine (Podolia), Ludlow; Australia (Victoria, northern Queensland), Emsian; Canada (Arctic Island, Yukon), Eifelian
Age Range
Beginning Stage in Treatise Usage:
Silurian (Wenlock)
Beginning International Stage:
Sheinwoodian
Fraction Up In Beginning Stage:
0
Beginning Date:
432.93
Ending Stage in Treatise Usage:
Middle Devonian (Eifelian)
Ending International Stage:
Eifelian
Fraction Up In Ending Stage:
100
Ending Date:
385.3
Description
Laminae extensive, composed of two compact layers separated (in the same skeleton) by either or all of 1) spar cement, 2) sediment, 3) epibionts, 4) a line of cellules, or fused into a single layer. Pillars compact, simple, postlike, commonly incomplete or oblique.
References
Bogoyavlenskaya, O. V. 1965b. O taksonomicheskom znachenii astroriz u stromatoporoidei [On the taxonomic significance of the astrorhizae in the stromatoporoids]. In B. S. Sokolov & V. N. Dubatolov, eds., Tabuliatomorfnye korally devona i carbona SSSR. Trudy Vsesoiuznogo simpoziuma po izucheniiu iskopaemykh korallov, vypusk 2 [Tabulatomorph