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Overtonia
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Productoidea
Family:
Productellidae
Formal Genus Name and Reference:
Overtonia THOMAS, 1914, p. 259
Type Species:
Producta fimbriata J. de C. SOWERBY, 1824 in 1823-1825, p. 85, OD
Images
(Click to enlarge in a new window)
Fig. 283, $1 a-g$. *O. fimbriata (J. de C. Sowerby), $a-d$, ventral, dorsal, lateral, posterior views of shell, Asbian, York-
Synonyms
Geographic Distribution
Europe, ?Asia, ?northern Africa
Age Range
Beginning Stage in Treatise Usage:
Lower Carboniferous (upper Viséan)
Beginning International Stage:
Visean
Fraction Up In Beginning Stage:
66
Beginning Date:
335.91
Ending Stage in Treatise Usage:
Lower Carboniferous (upper Viséan)
Ending International Stage:
Visean
Fraction Up In Ending Stage:
100
Ending Date:
330.34
Description
Small to medium, ventral spines associated with rugae from crests, short prostrate spines at lamellose anterior margins, dorsal spines erect in bands between series of short trails, dorsal adductor platforms raised
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Productoidea
Family:
Productellidae
Formal Genus Name and Reference:
Overtonia THOMAS, 1914, p. 259
Type Species:
Producta fimbriata J. de C. SOWERBY, 1824 in 1823-1825, p. 85, OD
Images
(Click to enlarge in a new window)
Fig. 283, $1 a-g$. *O. fimbriata (J. de C. Sowerby), $a-d$, ventral, dorsal, lateral, posterior views of shell, Asbian, York-
Synonyms
Geographic Distribution
Europe, ?Asia, ?northern Africa
Age Range
Beginning Stage in Treatise Usage:
Lower Carboniferous (upper Viséan)
Beginning International Stage:
Visean
Fraction Up In Beginning Stage:
66
Beginning Date:
335.91
Ending Stage in Treatise Usage:
Lower Carboniferous (upper Viséan)
Ending International Stage:
Visean
Fraction Up In Ending Stage:
100
Ending Date:
330.34
Description
Small to medium, ventral spines associated with rugae from crests, short prostrate spines at lamellose anterior margins, dorsal spines erect in bands between series of short trails, dorsal adductor platforms raised