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Pulchellia
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Pulchelliaceae
Family:
Pulchelliidae
Formal Genus Name and Reference:
Pulchellia UHLIG, 1883, p. 246
Type Species:
Ammonites galeatus Buch, 1839, p. 5, SD GIGNOUX, 1921, p. 147
Images
(Click to enlarge in a new window)
Fig. 86, 2a, b. * P. (H.) provincialis (Orbigny), Barremian, France, X 1 (Cottreau, 1937).-Fig. 86, 2c, d. P. (H.) galeatoides (Karsten), Barremian, Colombia, X0.75 (Karsten, 1858)., Fig. 86, 3a, b. *P. (C.) lindigi (Karsten), a, X 1, b, X0. 75 (Collet, 1924).
Synonyms
Geographic Distribution
southern and central Europe, northern Africa, ?Japan, California, Venezuela, Colombia, Chile
Age Range
Beginning Stage in Treatise Usage:
Lower Cretaceous (Upper Hauterivian)
Beginning International Stage:
Hauterivian
Fraction Up In Beginning Stage:
45
Beginning Date:
129.86
Ending Stage in Treatise Usage:
Lower Cretaceous (Upper Barremian)
Ending International Stage:
Barremian
Fraction Up In Ending Stage:
100
Ending Date:
121.4
Description
Involute to evolute, compressed and flat-sided to rather inflated with convex sides, ribs ranging from coarse, broad, and flat to dense, fine, and sharp, ribs branching, or long and short, or more or less uniform and single, forming blunt to sharp ventrolateral clavi, always opposite, and continuing strongly or feebly across flat or sulcate venter, inner ventrolateral tubercles and umbilical bullae may be present.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Pulchelliaceae
Family:
Pulchelliidae
Formal Genus Name and Reference:
Pulchellia UHLIG, 1883, p. 246
Type Species:
Ammonites galeatus Buch, 1839, p. 5, SD GIGNOUX, 1921, p. 147
Images
(Click to enlarge in a new window)
Fig. 86, 2a, b. * P. (H.) provincialis (Orbigny), Barremian, France, X 1 (Cottreau, 1937).-Fig. 86, 2c, d. P. (H.) galeatoides (Karsten), Barremian, Colombia, X0.75 (Karsten, 1858)., Fig. 86, 3a, b. *P. (C.) lindigi (Karsten), a, X 1, b, X0. 75 (Collet, 1924).
Synonyms
Geographic Distribution
southern and central Europe, northern Africa, ?Japan, California, Venezuela, Colombia, Chile
Age Range
Beginning Stage in Treatise Usage:
Lower Cretaceous (Upper Hauterivian)
Beginning International Stage:
Hauterivian
Fraction Up In Beginning Stage:
45
Beginning Date:
129.86
Ending Stage in Treatise Usage:
Lower Cretaceous (Upper Barremian)
Ending International Stage:
Barremian
Fraction Up In Ending Stage:
100
Ending Date:
121.4
Description
Involute to evolute, compressed and flat-sided to rather inflated with convex sides, ribs ranging from coarse, broad, and flat to dense, fine, and sharp, ribs branching, or long and short, or more or less uniform and single, forming blunt to sharp ventrolateral clavi, always opposite, and continuing strongly or feebly across flat or sulcate venter, inner ventrolateral tubercles and umbilical bullae may be present.