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Rhabdotetradium
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Tabulata
Order:
Tetradiida
Family:
Tetradiidae
Formal Genus Name and Reference:
Rhabdotetradium SOKOLOV, 1955, p. 247
Type Species:
R. nobile, OD, †91, coll. 599, VNIGRI, Leningrad
Images
(Click to enlarge in a new window)
Fig. 338,2a,b.-R. nobile, holotype, U.Ord.(Dolbor.), USSR, W.Sib.Platf., basin of R. Stony Tunguska; a,b, transv., long.
secs., X4.0 (Sokolov, 1955).
Synonyms
Geographic Distribution
N.Am.(Md.-Tenn.-Ky.-Okla.-Va,)-Australia(New S.Wales-Tasm.); U.Ord., N.Am. (Greenl.-Alaska)-Eu. (Est.) Asia (Sib. Platf.-Tay-myr-NE.USSR)
Age Range
Beginning Stage in Treatise Usage:
M.Ord.
Beginning International Stage:
Dapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
471.26
Ending Stage in Treatise Usage:
M.Ord.
Ending International Stage:
Darriwilian
Fraction Up In Ending Stage:
100
Ending Date:
458.18
Description
Corallum phaceloid, corallites long and meandering, prismatic, rounded-prismatic, or rarely cylindrical; increase quadripartite, four longitudinal radial plates grow to join at axis and the four corallites thus formed then quickly diverge from one another; rarely bipartite; secondary radial plates seldom seen; walls thin; tabulae rare to absent.
References
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Tabulata
Order:
Tetradiida
Family:
Tetradiidae
Formal Genus Name and Reference:
Rhabdotetradium SOKOLOV, 1955, p. 247
Type Species:
R. nobile, OD, †91, coll. 599, VNIGRI, Leningrad
Images
(Click to enlarge in a new window)
Fig. 338,2a,b.-R. nobile, holotype, U.Ord.(Dolbor.), USSR, W.Sib.Platf., basin of R. Stony Tunguska; a,b, transv., long.
secs., X4.0 (Sokolov, 1955).
Synonyms
Geographic Distribution
N.Am.(Md.-Tenn.-Ky.-Okla.-Va,)-Australia(New S.Wales-Tasm.); U.Ord., N.Am. (Greenl.-Alaska)-Eu. (Est.) Asia (Sib. Platf.-Tay-myr-NE.USSR)
Age Range
Beginning Stage in Treatise Usage:
M.Ord.
Beginning International Stage:
Dapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
471.26
Ending Stage in Treatise Usage:
M.Ord.
Ending International Stage:
Darriwilian
Fraction Up In Ending Stage:
100
Ending Date:
458.18
Description
Corallum phaceloid, corallites long and meandering, prismatic, rounded-prismatic, or rarely cylindrical; increase quadripartite, four longitudinal radial plates grow to join at axis and the four corallites thus formed then quickly diverge from one another; rarely bipartite; secondary radial plates seldom seen; walls thin; tabulae rare to absent.