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Diplophyllum
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Columnariina
Family:
Acervulariidae
Formal Genus Name and Reference:
Diplophyllum HALL, 1852a, p. 115
Type Species:
D. caespitosum; M; +I696:1, AMNH, New York; lectotype by OLIVER, 1963, p. G3
Images
(Click to enlarge in a new window)
Fig. 167,3a-d. *D. caespitosum, Lockport doL, N.Y., Lockport; a,b, lectotype, transv., long. sees., X6.7; c,d, topotype, transv., long. sees., X6.7, X2.7 (Oliver, 1963).
Synonyms
Geographic Distribution
N.Am.(N.Y.)-Eu. (Gotl.)
Age Range
Beginning Stage in Treatise Usage:
M.Sil.
Beginning International Stage:
Sheinwoodian
Fraction Up In Beginning Stage:
0
Beginning Date:
432.93
Ending Stage in Treatise Usage:
M.Sil.
Ending International Stage:
Homerian
Fraction Up In Ending Stage:
100
Ending Date:
426.74
Description
Phaceloid, phacelocerioid, or cerioid; inner wall separating marginarium from tabularium, where major and minor septa thicken to contiguity; major septa may be long, or short and subequal to minor; septal trabeculae may diverge radially at inner wall so that narrow zone of longitudinally or even abaxially inclined trabeculae may be found on abaxial side of inner wall; tabularium wide, tabulae mostly complete, flat to gently arched; in marginarium flat plates cross interseptal loculi; increase commonly peripheral or lateral [see OLIVER, 1963, p. Gl].
References
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Columnariina
Family:
Acervulariidae
Formal Genus Name and Reference:
Diplophyllum HALL, 1852a, p. 115
Type Species:
D. caespitosum; M; +I696:1, AMNH, New York; lectotype by OLIVER, 1963, p. G3
Images
(Click to enlarge in a new window)
Fig. 167,3a-d. *D. caespitosum, Lockport doL, N.Y., Lockport; a,b, lectotype, transv., long. sees., X6.7; c,d, topotype, transv., long. sees., X6.7, X2.7 (Oliver, 1963).
Synonyms
Geographic Distribution
N.Am.(N.Y.)-Eu. (Gotl.)
Age Range
Beginning Stage in Treatise Usage:
M.Sil.
Beginning International Stage:
Sheinwoodian
Fraction Up In Beginning Stage:
0
Beginning Date:
432.93
Ending Stage in Treatise Usage:
M.Sil.
Ending International Stage:
Homerian
Fraction Up In Ending Stage:
100
Ending Date:
426.74
Description
Phaceloid, phacelocerioid, or cerioid; inner wall separating marginarium from tabularium, where major and minor septa thicken to contiguity; major septa may be long, or short and subequal to minor; septal trabeculae may diverge radially at inner wall so that narrow zone of longitudinally or even abaxially inclined trabeculae may be found on abaxial side of inner wall; tabularium wide, tabulae mostly complete, flat to gently arched; in marginarium flat plates cross interseptal loculi; increase commonly peripheral or lateral [see OLIVER, 1963, p. Gl].