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Praeradiolites
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Hippuritoida (rudists and relatives)
Superfamily:
Hippuritacea (rudists)
Family:
Radiolitidae
Subfamily:
Radiolitinae
Formal Genus Name and Reference:
Praeradiolites DOUVILLÉ, 1902 1903, p. 467
Type Species:
Radiolites feuriaui D'ORBIGNY, 1842, p. 181, OD
Images
(Click to enlarge in a new window)
Fig. E269,2a-c. *P. fleuriaui (d'OrbigNY), Cenoman., France (Charente), 2 a, b, post. lat. and ant. views, X0.75, 2 c, view from above, X0.75 (911). -Fig. E269,2d. P. toucasi (d'Orbigny), Santon., France, AV lat. view, X0.75 (911). --Fig. E269,2e. P. cylindraceus (des Moulins), Maastricht., France, FV int., X0.45 (911).
Synonyms
Geographic Distribution
Eu.-N.Afr.-NE.Asia-N.Am.
Age Range
Beginning Stage in Treatise Usage:
L.Cret.(Alb.)
Beginning International Stage:
Albian
Fraction Up In Beginning Stage:
0
Beginning Date:
113.2
Ending Stage in Treatise Usage:
U.Cret.(Maastricht.)
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
AV conical, externally with smooth folds in form of stack of inverted cones, in younger species developed into undulating chevron pattern, siphonal folds convex, plates bent upward, separated by projecting fold, outer wall structure coarsely reticulate. FV operculiform, convex to flat; myophore apophyses present. Stacked, un- dulating siphonal band folds distinctive.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Hippuritoida (rudists and relatives)
Superfamily:
Hippuritacea (rudists)
Family:
Radiolitidae
Subfamily:
Radiolitinae
Formal Genus Name and Reference:
Praeradiolites DOUVILLÉ, 1902 1903, p. 467
Type Species:
Radiolites feuriaui D'ORBIGNY, 1842, p. 181, OD
Images
(Click to enlarge in a new window)
Fig. E269,2a-c. *P. fleuriaui (d'OrbigNY), Cenoman., France (Charente), 2 a, b, post. lat. and ant. views, X0.75, 2 c, view from above, X0.75 (911). -Fig. E269,2d. P. toucasi (d'Orbigny), Santon., France, AV lat. view, X0.75 (911). --Fig. E269,2e. P. cylindraceus (des Moulins), Maastricht., France, FV int., X0.45 (911).
Synonyms
Geographic Distribution
Eu.-N.Afr.-NE.Asia-N.Am.
Age Range
Beginning Stage in Treatise Usage:
L.Cret.(Alb.)
Beginning International Stage:
Albian
Fraction Up In Beginning Stage:
0
Beginning Date:
113.2
Ending Stage in Treatise Usage:
U.Cret.(Maastricht.)
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
AV conical, externally with smooth folds in form of stack of inverted cones, in younger species developed into undulating chevron pattern, siphonal folds convex, plates bent upward, separated by projecting fold, outer wall structure coarsely reticulate. FV operculiform, convex to flat; myophore apophyses present. Stacked, un- dulating siphonal band folds distinctive.