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Nemistium
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Lithostrotionina
Family:
Lithostrotionidae
Subfamily:
Diphyphyllinae
Formal Genus Name and Reference:
Nemistium SMITH, 1928, p. 114
Type Species:
N. edmondsi, OD; +R.25488 and 25489, BM(NH), London
Images
(Click to enlarge in a new window)
Fig. 251,1a,b. *N. edmondsi, Eng., a, Ward Hall East Quarry near Aspatria, W. Cumberland, transv. sec., X2.0, b, Eskett Quarry, near Winder Railway Station, long. sec., X2.5 (Smith, 1928).
Synonyms
Geographic Distribution
Eu.(Eng.-Wales-USSR)-?Asia(Kazakh.)
Age Range
Beginning Stage in Treatise Usage:
L.Carb.(up.Visean)
Beginning International Stage:
Visean
Fraction Up In Beginning Stage:
66
Beginning Date:
335.91
Ending Stage in Treatise Usage:
L.Carb.(up.Visean)
Ending International Stage:
Visean
Fraction Up In Ending Stage:
100
Ending Date:
330.34
Description
Phaceloid, with peripheral increase, with an axial structure of strongly arched axial tabulae each resting on the arch below, and, irregularly present, irregular septal lamellae, periaxial tabulae abut axial structure, somewhat declined to narrow dissepimentarium of small plates, major and minor septa present, axial ends of major septa abutting axial structure
References
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Lithostrotionina
Family:
Lithostrotionidae
Subfamily:
Diphyphyllinae
Formal Genus Name and Reference:
Nemistium SMITH, 1928, p. 114
Type Species:
N. edmondsi, OD; +R.25488 and 25489, BM(NH), London
Images
(Click to enlarge in a new window)
Fig. 251,1a,b. *N. edmondsi, Eng., a, Ward Hall East Quarry near Aspatria, W. Cumberland, transv. sec., X2.0, b, Eskett Quarry, near Winder Railway Station, long. sec., X2.5 (Smith, 1928).
Synonyms
Geographic Distribution
Eu.(Eng.-Wales-USSR)-?Asia(Kazakh.)
Age Range
Beginning Stage in Treatise Usage:
L.Carb.(up.Visean)
Beginning International Stage:
Visean
Fraction Up In Beginning Stage:
66
Beginning Date:
335.91
Ending Stage in Treatise Usage:
L.Carb.(up.Visean)
Ending International Stage:
Visean
Fraction Up In Ending Stage:
100
Ending Date:
330.34
Description
Phaceloid, with peripheral increase, with an axial structure of strongly arched axial tabulae each resting on the arch below, and, irregularly present, irregular septal lamellae, periaxial tabulae abut axial structure, somewhat declined to narrow dissepimentarium of small plates, major and minor septa present, axial ends of major septa abutting axial structure