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Tropidodiscus
Classification
Phylum:
Mollusca
Class:
Gastropoda
Subclass:
Prosobranchia
Order:
Archaeogastropoda
Suborder:
Bellerophontina
Superfamily:
Bellerophontacea
Family:
Bellerophontidae
Subfamily:
Tropidodiscinae
Formal Genus Name and Reference:
Tropidodiscus Meek & WORTHEN, 1866
Type Species:
Bellerophon curvilineatus CONRAD, 1842
Images
(Click to enlarge in a new window)
Fig. 95,1. *. curvilineatus (Conrad), L.Dev., N.Y.; 1a,b, left and apertural sides, X1.3
Synonyms
Tropidocyclus, Oxydiscus, Zonidiscus, Joleaudella
Geographic Distribution
N.Am.-S.Am.-Eu.-Asia
Age Range
Beginning Stage in Treatise Usage:
Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
Dev.
Ending International Stage:
Famennian
Fraction Up In Ending Stage:
100
Ending Date:
359.3
Description
Lenticular, with acuminate periphery, slit deep, narrow, selenizone narrow, ornament collabral lines or imbricating lamellae
References
Worthen, A. H., 1866, Descriptions of invertebrates from the Carboniferous System: Illinois Geol. Survey, v. 2, Paleontology, p. 143-410, pl. 14-32 (Springfield).
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Gastropoda
Subclass:
Prosobranchia
Order:
Archaeogastropoda
Suborder:
Bellerophontina
Superfamily:
Bellerophontacea
Family:
Bellerophontidae
Subfamily:
Tropidodiscinae
Formal Genus Name and Reference:
Tropidodiscus Meek & WORTHEN, 1866
Type Species:
Bellerophon curvilineatus CONRAD, 1842
Images
(Click to enlarge in a new window)
Fig. 95,1. *. curvilineatus (Conrad), L.Dev., N.Y.; 1a,b, left and apertural sides, X1.3
Synonyms
Tropidocyclus, Oxydiscus, Zonidiscus, Joleaudella
Geographic Distribution
N.Am.-S.Am.-Eu.-Asia
Age Range
Beginning Stage in Treatise Usage:
Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
Dev.
Ending International Stage:
Famennian
Fraction Up In Ending Stage:
100
Ending Date:
359.3
Description
Lenticular, with acuminate periphery, slit deep, narrow, selenizone narrow, ornament collabral lines or imbricating lamellae
References
Worthen, A. H., 1866, Descriptions of invertebrates from the Carboniferous System: Illinois Geol. Survey, v. 2, Paleontology, p. 143-410, pl. 14-32 (Springfield).