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Psydracophyllum
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Ptenophyllina
Family:
Ptenophyllidae
Subfamily:
Ptenophyllinae
Formal Genus Name and Reference:
Psydracophyllum PEDDER, 1971d, p. 47
Type Species:
P. lonsdaleiaforme, OD, +25845, GSC, Ottawa
Images
(Click to enlarge in a new window)
Fig. 151,3a,b. *P. lonsdaleiaforme, holotype, up.Couvin.-low.Givet., Nahanni F., N. Funeral Ra., SW. Distr. Mackenzie, a, b, long., transv. secs., X1 (Pedder, 1971d).
Synonyms
Geographic Distribution
N.Am. (NW.Can.)
Age Range
Beginning Stage in Treatise Usage:
M.Dev.(up.Couvin.)
Beginning International Stage:
Eifelian
Fraction Up In Beginning Stage:
0
Beginning Date:
394.3
Ending Stage in Treatise Usage:
M.Dev.(low.Givet.)
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
35
Ending Date:
383.06
Description
Weakly to moderately dendroid, increase lateral, septa radially to pinnately arranged, thin, smooth to strongly flanged, mostly withdrawn from periphery at all stages, Km may be elongate; minor septa long, commonly almost contratingent; tabularium narrow, of closely spaced, thin tabellae, variably inclined; tabular floors irregular, commonly without median or axial notch; dissepimentarium wide, dissepiments large and lonsdaleoid in wide outer zone.
References
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Ptenophyllina
Family:
Ptenophyllidae
Subfamily:
Ptenophyllinae
Formal Genus Name and Reference:
Psydracophyllum PEDDER, 1971d, p. 47
Type Species:
P. lonsdaleiaforme, OD, +25845, GSC, Ottawa
Images
(Click to enlarge in a new window)
Fig. 151,3a,b. *P. lonsdaleiaforme, holotype, up.Couvin.-low.Givet., Nahanni F., N. Funeral Ra., SW. Distr. Mackenzie, a, b, long., transv. secs., X1 (Pedder, 1971d).
Synonyms
Geographic Distribution
N.Am. (NW.Can.)
Age Range
Beginning Stage in Treatise Usage:
M.Dev.(up.Couvin.)
Beginning International Stage:
Eifelian
Fraction Up In Beginning Stage:
0
Beginning Date:
394.3
Ending Stage in Treatise Usage:
M.Dev.(low.Givet.)
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
35
Ending Date:
383.06
Description
Weakly to moderately dendroid, increase lateral, septa radially to pinnately arranged, thin, smooth to strongly flanged, mostly withdrawn from periphery at all stages, Km may be elongate; minor septa long, commonly almost contratingent; tabularium narrow, of closely spaced, thin tabellae, variably inclined; tabular floors irregular, commonly without median or axial notch; dissepimentarium wide, dissepiments large and lonsdaleoid in wide outer zone.