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Hippurites
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Hippuritoida (rudists and relatives)
Superfamily:
Hippuritacea (rudists)
Family:
Hippuritidae
Formal Genus Name and Reference:
Hippurites LAMARCK, 1801, p. 104
Type Species:
H. bioculata
Images
(Click to enlarge in a new window)
Fig. E263,1a-e. *H. bioculata, U.Cret.(Senon. ), France, 1 a, FV ext., X1.3 (269), 1 b, transv. sec. viewed toward commissure, AV center pseudopillars S p and E p dark, X1.7, 1c, detail ant. part polarized light, X2.7, 1 d, pillar S_{p}, polarized light, X13, le, long. sec. AV, pillars white, oscular indentations above pillars, X2 (942).-Fig. E263,1f. H. canaliculatus Rolland du Roquan, U.Cret., France, linear pores in FV, X7 (269).
Synonyms
Orthoceratites, Cornucopina, Coralliolites, Pachynus, Dorbignya, Orbignia, Orbignya
Geographic Distribution
Eu.-NE. Afr.(Somalia)-Asia-N. Am.-Antilles
Age Range
Beginning Stage in Treatise Usage:
U.Cret.(Turon)
Beginning International Stage:
Maastrichtian
Fraction Up In Beginning Stage:
0
Beginning Date:
72.17
Ending Stage in Treatise Usage:
U. Cret.(Maastricht.)
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
AV nearly cylindrical, smooth, bearing 2 furrows in some but not all species, ligamental ridge short or absent, pillars Ep and Sp distinct, L absent or slightly curved to pointed inflexion of wall sector L-Sp-Ep greater than one-quarter circumference; FV nearly flat, with 2 oscules and simple linear, well-separated pores.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Hippuritoida (rudists and relatives)
Superfamily:
Hippuritacea (rudists)
Family:
Hippuritidae
Formal Genus Name and Reference:
Hippurites LAMARCK, 1801, p. 104
Type Species:
H. bioculata
Images
(Click to enlarge in a new window)
Fig. E263,1a-e. *H. bioculata, U.Cret.(Senon. ), France, 1 a, FV ext., X1.3 (269), 1 b, transv. sec. viewed toward commissure, AV center pseudopillars S p and E p dark, X1.7, 1c, detail ant. part polarized light, X2.7, 1 d, pillar S_{p}, polarized light, X13, le, long. sec. AV, pillars white, oscular indentations above pillars, X2 (942).-Fig. E263,1f. H. canaliculatus Rolland du Roquan, U.Cret., France, linear pores in FV, X7 (269).
Synonyms
Orthoceratites, Cornucopina, Coralliolites, Pachynus, Dorbignya, Orbignia, Orbignya
Geographic Distribution
Eu.-NE. Afr.(Somalia)-Asia-N. Am.-Antilles
Age Range
Beginning Stage in Treatise Usage:
U.Cret.(Turon)
Beginning International Stage:
Maastrichtian
Fraction Up In Beginning Stage:
0
Beginning Date:
72.17
Ending Stage in Treatise Usage:
U. Cret.(Maastricht.)
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
AV nearly cylindrical, smooth, bearing 2 furrows in some but not all species, ligamental ridge short or absent, pillars Ep and Sp distinct, L absent or slightly curved to pointed inflexion of wall sector L-Sp-Ep greater than one-quarter circumference; FV nearly flat, with 2 oscules and simple linear, well-separated pores.