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Frechastraea
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Columnariina
Family:
Phillipsastreidae
Subfamily:
Group 2
Formal Genus Name and Reference:
Frechastraea SCRUTTON, 1968, p. 231
Type Species:
Cyathophyllum pentagonum Goldfuss, 1826, p. 60, OD, *, Goldfuss Coll., IP, Bonn, lectotype by PICKETT, 1967b, p. 80
Images
(Click to enlarge in a new window)
Fig. 182, 2a-c. * F. pentagona (Goldfuss), lectotype, Frasn., Belg., Namur reg., a,b, transv., long. sec., X4, X6; c, another specimen, low. Frasn., U.K., road cutting 18 m. W. of Ramsleigh quarry entrance, near Torquay, long. sec., X6 (a, Pickett, 1967b, b, c, Scrutton, 1968).
Synonyms
Scruttonia
Geographic Distribution
Eu. (Vaygach I.), U.Dev.(Frasn.), Eu.(U.K.-France-Belg.-Ger.-Pol.-?S.Urals-Timan-?Spain)-Asia (Kuz-bas-NE. USSR)-N. Am.(NW. Terr.)
Age Range
Beginning Stage in Treatise Usage:
M.Dev.(Eifel.)
Beginning International Stage:
Eifelian
Fraction Up In Beginning Stage:
0
Beginning Date:
394.3
Ending Stage in Treatise Usage:
M.Dev.(Eifel.)
Ending International Stage:
Eifelian
Fraction Up In Ending Stage:
100
Ending Date:
385.3
Description
Astreoid, in places thamnasterioid, major and minor septa uniformly thick in dissepimentarium except in narrow stereozone defining wall to tabularium, attenuate in tabularium, dissepiments small, globose, septal trabeculae arranged in tight fan, axis commonly based on series of dissepiments adjacent to tabularium, which may in places be developed as impersistent pipe of horseshoe dissepiments; dissepimentarial floors almost flat, with slight elevation at wal1 surrounding tabularium; tabulae complete or incomplete.
References
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Columnariina
Family:
Phillipsastreidae
Subfamily:
Group 2
Formal Genus Name and Reference:
Frechastraea SCRUTTON, 1968, p. 231
Type Species:
Cyathophyllum pentagonum Goldfuss, 1826, p. 60, OD, *, Goldfuss Coll., IP, Bonn, lectotype by PICKETT, 1967b, p. 80
Images
(Click to enlarge in a new window)
Fig. 182, 2a-c. * F. pentagona (Goldfuss), lectotype, Frasn., Belg., Namur reg., a,b, transv., long. sec., X4, X6; c, another specimen, low. Frasn., U.K., road cutting 18 m. W. of Ramsleigh quarry entrance, near Torquay, long. sec., X6 (a, Pickett, 1967b, b, c, Scrutton, 1968).
Synonyms
Scruttonia
Geographic Distribution
Eu. (Vaygach I.), U.Dev.(Frasn.), Eu.(U.K.-France-Belg.-Ger.-Pol.-?S.Urals-Timan-?Spain)-Asia (Kuz-bas-NE. USSR)-N. Am.(NW. Terr.)
Age Range
Beginning Stage in Treatise Usage:
M.Dev.(Eifel.)
Beginning International Stage:
Eifelian
Fraction Up In Beginning Stage:
0
Beginning Date:
394.3
Ending Stage in Treatise Usage:
M.Dev.(Eifel.)
Ending International Stage:
Eifelian
Fraction Up In Ending Stage:
100
Ending Date:
385.3
Description
Astreoid, in places thamnasterioid, major and minor septa uniformly thick in dissepimentarium except in narrow stereozone defining wall to tabularium, attenuate in tabularium, dissepiments small, globose, septal trabeculae arranged in tight fan, axis commonly based on series of dissepiments adjacent to tabularium, which may in places be developed as impersistent pipe of horseshoe dissepiments; dissepimentarial floors almost flat, with slight elevation at wal1 surrounding tabularium; tabulae complete or incomplete.