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Janius
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Cyrtioidea
Family:
Cyrtiidae
Formal Genus Name and Reference:
Janius HAVLÍČEK, 1957a, p. 245
Type Species:
* Spirifer nobilis BARRANDE, 1848, p. 184, OD
Images
(Click to enlarge in a new window)
Fig. 1106, 4a-d. J. exsul (Barrande), upper Wenlock, Bohemia, ventral, dorsal, anterior, and side views, X1 (Havlíček, 1980), ——Fig. 1106, 4e. J. bouskai Havlíček, Ludlow, Bohemia, ornament, ×6 (Havlíček, 1980)
Synonyms
Geographic Distribution
cosmopolitan
Age Range
Beginning Stage in Treatise Usage:
Silurian (upper Wenlock)
Beginning International Stage:
Homerian
Fraction Up In Beginning Stage:
50
Beginning Date:
428.68
Ending Stage in Treatise Usage:
Lower Devonian (Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
100
Ending Date:
394.3
Description
Strongly plicate with plications that bifurcate and intercalate, small plications may be present in sulcus
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Cyrtioidea
Family:
Cyrtiidae
Formal Genus Name and Reference:
Janius HAVLÍČEK, 1957a, p. 245
Type Species:
* Spirifer nobilis BARRANDE, 1848, p. 184, OD
Images
(Click to enlarge in a new window)
Fig. 1106, 4a-d. J. exsul (Barrande), upper Wenlock, Bohemia, ventral, dorsal, anterior, and side views, X1 (Havlíček, 1980), ——Fig. 1106, 4e. J. bouskai Havlíček, Ludlow, Bohemia, ornament, ×6 (Havlíček, 1980)
Synonyms
Geographic Distribution
cosmopolitan
Age Range
Beginning Stage in Treatise Usage:
Silurian (upper Wenlock)
Beginning International Stage:
Homerian
Fraction Up In Beginning Stage:
50
Beginning Date:
428.68
Ending Stage in Treatise Usage:
Lower Devonian (Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
100
Ending Date:
394.3
Description
Strongly plicate with plications that bifurcate and intercalate, small plications may be present in sulcus