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Sestrophyllum
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Aulophyllina
Family:
Aulophyllidae
Subfamily:
Dibunophyllinae
Formal Genus Name and Reference:
Sestrophyllum FOMICHEV, 1953a, p. 380
Type Species:
S. astraeforme, OD, †336, coll. 5030, TsGM, Leningrad
Images
(Click to enlarge in a new window)
Fig. 240,2a-c. *S. astraeforme, holotype, U. Carb., C32, USSR, left bank R. Kalmius, a, b, transv., c, long. secs., all X3.0 (Fomichev, 1953a)
Synonyms
Geographic Distribution
Penn., ?N.Am. (Kans.-Okla.-Texas)
Age Range
Beginning Stage in Treatise Usage:
U.Carb.
Beginning International Stage:
Bashkirian
Fraction Up In Beginning Stage:
0
Beginning Date:
323.4
Ending Stage in Treatise Usage:
U.Carb.
Ending International Stage:
Gzhelian
Fraction Up In Ending Stage:
100
Ending Date:
298.89
Description
Solitary, conicocylindrical, slender, with axial structure of radial lamellae, with or without median plate continuous with both cardinal and counter septa, and steeply declined axial tabellae, with narrow dissepimentarium that appears early, calicular platforms everted in some, major septa commonly reach axial structure, cardinal septum not shortened, so that fossula is not apparent, septa thickened in inner parts of dissepimentarium, thinning adaxially, minor septa weaker, septa may become discontinuous abaxially, periaxial tabellae globose, floors declined slightly abaxially; minor septa weaker; septa may become discontinuous abaxially; periaxial tabellae globose, floors declined slightly abaxially.
References
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Aulophyllina
Family:
Aulophyllidae
Subfamily:
Dibunophyllinae
Formal Genus Name and Reference:
Sestrophyllum FOMICHEV, 1953a, p. 380
Type Species:
S. astraeforme, OD, †336, coll. 5030, TsGM, Leningrad
Images
(Click to enlarge in a new window)
Fig. 240,2a-c. *S. astraeforme, holotype, U. Carb., C32, USSR, left bank R. Kalmius, a, b, transv., c, long. secs., all X3.0 (Fomichev, 1953a)
Synonyms
Geographic Distribution
Penn., ?N.Am. (Kans.-Okla.-Texas)
Age Range
Beginning Stage in Treatise Usage:
U.Carb.
Beginning International Stage:
Bashkirian
Fraction Up In Beginning Stage:
0
Beginning Date:
323.4
Ending Stage in Treatise Usage:
U.Carb.
Ending International Stage:
Gzhelian
Fraction Up In Ending Stage:
100
Ending Date:
298.89
Description
Solitary, conicocylindrical, slender, with axial structure of radial lamellae, with or without median plate continuous with both cardinal and counter septa, and steeply declined axial tabellae, with narrow dissepimentarium that appears early, calicular platforms everted in some, major septa commonly reach axial structure, cardinal septum not shortened, so that fossula is not apparent, septa thickened in inner parts of dissepimentarium, thinning adaxially, minor septa weaker, septa may become discontinuous abaxially, periaxial tabellae globose, floors declined slightly abaxially; minor septa weaker; septa may become discontinuous abaxially; periaxial tabellae globose, floors declined slightly abaxially.