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Grewingkia
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Streptelasmatina
Family:
Streptelasmatidae
Subfamily:
Streptelasmatinae
Formal Genus Name and Reference:
Grewingkia DYBOWSKI, 1873c, p. 384
Type Species:
Clisiophyllum buceros EICHWALD, 1856, p. 108; SD
SHERZER, 1891, p. 284; +1/241, EICHWALD CoIl., LGU, Leningrad
Images
(Click to enlarge in a new window)
Fig. 85,3a-e. *G. buceros (EICHWALD), U.Ord.(5a), Nor., Stavnaestangen; a, transv. sec., X2.0; bod, diagram. transv. sees.; e, diagram. long. sec. (Neuman, 1969). --Fig. 85,3f. G. bilateralis NEUMAN, Boda Ls., Swed., Osmundsberg, NE. Siljan distr.; transv. sec., X1.5 (Neuman, 1969).
Synonyms
Kiaerophyllum, Clisiophyllum buceros, ?Cyatholasma
Geographic Distribution
Eu.(Eng.-Nor.-Swed.-Est.)-N. Am. (USA-Can.-Akpatok 1.)-?Asia(Salair)
Age Range
Beginning Stage in Treatise Usage:
U.Ord.
Beginning International Stage:
Sandbian
Fraction Up In Beginning Stage:
0
Beginning Date:
458.18
Ending Stage in Treatise Usage:
U.Ord.
Ending International Stage:
Hirnantian
Fraction Up In Ending Stage:
100
Ending Date:
443.07
Description
Corallum solitary, trochoid, ceratoid or cylindrical, with convex cardinal sidc; in early stages septa moderately or strongly dilated, major septa being long and feebly fused into narrow axial structure; in later stages major scpta thin and short; axial structure broad, spongy, of numerous mostly irregularly intertwined vermiform septal lobes and lamellae [possibly with synapticulae], may include medial plate; calicular boss present or absent; minor septa projecting variably from moderately wide peripheral stereozone; tabulae complete or incomplete, convex [see NUEMAN, 1969, p. 33].
References
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Streptelasmatina
Family:
Streptelasmatidae
Subfamily:
Streptelasmatinae
Formal Genus Name and Reference:
Grewingkia DYBOWSKI, 1873c, p. 384
Type Species:
Clisiophyllum buceros EICHWALD, 1856, p. 108; SD
SHERZER, 1891, p. 284; +1/241, EICHWALD CoIl., LGU, Leningrad
Images
(Click to enlarge in a new window)
Fig. 85,3a-e. *G. buceros (EICHWALD), U.Ord.(5a), Nor., Stavnaestangen; a, transv. sec., X2.0; bod, diagram. transv. sees.; e, diagram. long. sec. (Neuman, 1969). --Fig. 85,3f. G. bilateralis NEUMAN, Boda Ls., Swed., Osmundsberg, NE. Siljan distr.; transv. sec., X1.5 (Neuman, 1969).
Synonyms
Kiaerophyllum, Clisiophyllum buceros, ?Cyatholasma
Geographic Distribution
Eu.(Eng.-Nor.-Swed.-Est.)-N. Am. (USA-Can.-Akpatok 1.)-?Asia(Salair)
Age Range
Beginning Stage in Treatise Usage:
U.Ord.
Beginning International Stage:
Sandbian
Fraction Up In Beginning Stage:
0
Beginning Date:
458.18
Ending Stage in Treatise Usage:
U.Ord.
Ending International Stage:
Hirnantian
Fraction Up In Ending Stage:
100
Ending Date:
443.07
Description
Corallum solitary, trochoid, ceratoid or cylindrical, with convex cardinal sidc; in early stages septa moderately or strongly dilated, major septa being long and feebly fused into narrow axial structure; in later stages major scpta thin and short; axial structure broad, spongy, of numerous mostly irregularly intertwined vermiform septal lobes and lamellae [possibly with synapticulae], may include medial plate; calicular boss present or absent; minor septa projecting variably from moderately wide peripheral stereozone; tabulae complete or incomplete, convex [see NUEMAN, 1969, p. 33].