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Sychnoelasma
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Stereolasmatina
Family:
Zaphrentoididae
Subfamily:
Zaphrentoidinae
Formal Genus Name and Reference:
Sychnoelasma Lang, Smith, & THOMAS, 1940, p. 128, nom. subst. pro Verneuilia SHTUKENBERG, 1895, p. 40, non HALL & CLARKE, 1894, a brachiopod
Type Species:
Verneuilia urbanowitschi Shtukenberg
Images
(Click to enlarge in a new window)
Fig. 208,4a. *S. urbanowitschi (SHTUKENBERG), basal Visean, Urals; calical view, enl. (Shtukenberg, 1895). --Fig. 208,4b,c. S. konincki (MILNE EDWARDS & HAIME), Belg., Tournai; h,c, transv. sees., X3 (Carruthers, 1908).
Synonyms
Homalophyllites, Verneuilites
Geographic Distribution
Eu. (U.K.-Belg.- Ger.-Russ.Platf.-Donbas-Urals-N.Zem.)-Asia (Kuz- bas-Kazakh.-NE.USSR); ?Miss., N.Am
Age Range
Beginning Stage in Treatise Usage:
L.Carb.
Beginning International Stage:
Tournaisian
Fraction Up In Beginning Stage:
0
Beginning Date:
359.3
Ending Stage in Treatise Usage:
L.Carb.
Ending International Stage:
Serpukhovian
Fraction Up In Ending Stage:
100
Ending Date:
323.4
Description
Solitary, small, ceratoid, cardinal side convex; calice moderately deep, bell-shaped; septa numerous, long, commonly thick, their axial ends fused to form thickened wall to cardinal fossula which is long, deepest at peripheral, and widest at axial end; trabeculae moderately coarse; cardinal septum thinning and shortening in later stages of development; minor septa may be long, not contratingent; tabular floors convex, sagging deeply in fossula, tabulae complete or incomplete; no dissepiments [see also SAYUTINA, 1976, p. II 3J.
References
Three indispensable indexes of Paleozoic coral genera with relevant lists of publications are: Lang, Smith, \& Thomas, 1940; Flügel, 1970; and Ivanovskix, 1973, with supplement by Bogoyavlenskaya, 1976. For Rugosa only there are also Cotton, 1973, with Supplement I published in 1974 and Supplement II in 1976, and Ivanovskiy, 1976. References to senior homonyms that have been applied to organisms other than Paleozoic corals are not included in this list, but those dated before 1966 may be found in contracted form in S. A. Neave, Nomenclator Zoologicus (1939-1975, $7 \mathrm{v} .$, Zoological Society, London). A list of full names of serials abbreviated below is to be found at the end of the Editorial Preface.
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Stereolasmatina
Family:
Zaphrentoididae
Subfamily:
Zaphrentoidinae
Formal Genus Name and Reference:
Sychnoelasma Lang, Smith, & THOMAS, 1940, p. 128, nom. subst. pro Verneuilia SHTUKENBERG, 1895, p. 40, non HALL & CLARKE, 1894, a brachiopod
Type Species:
Verneuilia urbanowitschi Shtukenberg
Images
(Click to enlarge in a new window)
Fig. 208,4a. *S. urbanowitschi (SHTUKENBERG), basal Visean, Urals; calical view, enl. (Shtukenberg, 1895). --Fig. 208,4b,c. S. konincki (MILNE EDWARDS & HAIME), Belg., Tournai; h,c, transv. sees., X3 (Carruthers, 1908).
Synonyms
Homalophyllites, Verneuilites
Geographic Distribution
Eu. (U.K.-Belg.- Ger.-Russ.Platf.-Donbas-Urals-N.Zem.)-Asia (Kuz- bas-Kazakh.-NE.USSR); ?Miss., N.Am
Age Range
Beginning Stage in Treatise Usage:
L.Carb.
Beginning International Stage:
Tournaisian
Fraction Up In Beginning Stage:
0
Beginning Date:
359.3
Ending Stage in Treatise Usage:
L.Carb.
Ending International Stage:
Serpukhovian
Fraction Up In Ending Stage:
100
Ending Date:
323.4
Description
Solitary, small, ceratoid, cardinal side convex; calice moderately deep, bell-shaped; septa numerous, long, commonly thick, their axial ends fused to form thickened wall to cardinal fossula which is long, deepest at peripheral, and widest at axial end; trabeculae moderately coarse; cardinal septum thinning and shortening in later stages of development; minor septa may be long, not contratingent; tabular floors convex, sagging deeply in fossula, tabulae complete or incomplete; no dissepiments [see also SAYUTINA, 1976, p. II 3J.
References
Three indispensable indexes of Paleozoic coral genera with relevant lists of publications are: Lang, Smith, \& Thomas, 1940; Flügel, 1970; and Ivanovskix, 1973, with supplement by Bogoyavlenskaya, 1976. For Rugosa only there are also Cotton, 1973, with Supplement I published in 1974 and Supplement II in 1976, and Ivanovskiy, 1976. References to senior homonyms that have been applied to organisms other than Paleozoic corals are not included in this list, but those dated before 1966 may be found in contracted form in S. A. Neave, Nomenclator Zoologicus (1939-1975, $7 \mathrm{v} .$, Zoological Society, London). A list of full names of serials abbreviated below is to be found at the end of the Editorial Preface.