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Kilianella
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Perisphinctaceae
Family:
Neocomitidae
Formal Genus Name and Reference:
Kilianella UNLIG, 1905, p. 614
Type Species:
Hoplites pexiptychus Uhlig, 1882b, p. 389, SD ROMAN, 1938, p. 332
Images
(Click to enlarge in a new window)
Fig. 41, 3a. *K. pexiptycha (Uhlig), Lower Valanginian, Austria, X 1 (Uhlig, 1882b)., ——Fig. 41, 3b, c. K. roubaudiana (Orbigny), Valanginian, France, X 1 (Kilian, 1889a)., ——Fig. 41, 3d, e. K. superba Sayn, Upper Valanginian, France, X 0.5 (Sayn, 1907a).
Synonyms
Geographic Distribution
southern and central Europe, Madagascar, Pakistan, Himalayas, Sumatra, California, Mexico
Age Range
Beginning Stage in Treatise Usage:
Lower Cretaceous (Upper Berriasian)
Beginning International Stage:
Berriasian
Fraction Up In Beginning Stage:
50
Beginning Date:
140.4
Ending Stage in Treatise Usage:
Lower Cretaceous (Upper Valanginian, ?Lower Hauterivian)
Ending International Stage:
Hauterivian
Fraction Up In Ending Stage:
45
Ending Date:
129.86
Description
Evolute; moderately compressed to moderately inflated; ribs strong, flexuous, simple or branching at midflank or in some at umbilical edge; ribs may be tuberculate at umbilical edge or midflank or ventrolaterally; constrictions generally present to a late stage. There seems to be a complete transition from untuberculate to trituberculate species. [Parakilianella is based on a probable microconch.]
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Perisphinctaceae
Family:
Neocomitidae
Formal Genus Name and Reference:
Kilianella UNLIG, 1905, p. 614
Type Species:
Hoplites pexiptychus Uhlig, 1882b, p. 389, SD ROMAN, 1938, p. 332
Images
(Click to enlarge in a new window)
Fig. 41, 3a. *K. pexiptycha (Uhlig), Lower Valanginian, Austria, X 1 (Uhlig, 1882b)., ——Fig. 41, 3b, c. K. roubaudiana (Orbigny), Valanginian, France, X 1 (Kilian, 1889a)., ——Fig. 41, 3d, e. K. superba Sayn, Upper Valanginian, France, X 0.5 (Sayn, 1907a).
Synonyms
Geographic Distribution
southern and central Europe, Madagascar, Pakistan, Himalayas, Sumatra, California, Mexico
Age Range
Beginning Stage in Treatise Usage:
Lower Cretaceous (Upper Berriasian)
Beginning International Stage:
Berriasian
Fraction Up In Beginning Stage:
50
Beginning Date:
140.4
Ending Stage in Treatise Usage:
Lower Cretaceous (Upper Valanginian, ?Lower Hauterivian)
Ending International Stage:
Hauterivian
Fraction Up In Ending Stage:
45
Ending Date:
129.86
Description
Evolute; moderately compressed to moderately inflated; ribs strong, flexuous, simple or branching at midflank or in some at umbilical edge; ribs may be tuberculate at umbilical edge or midflank or ventrolaterally; constrictions generally present to a late stage. There seems to be a complete transition from untuberculate to trituberculate species. [Parakilianella is based on a probable microconch.]