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Krotovia
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Productoidea
Family:
Productellidae
Formal Genus Name and Reference:
Krotovia FREDERICKS, 1928, p. 779
Type Species:
Productus spinulosus J. SOWERBY, 1814 in 1812-1815, p. 155, OD
Images
(Click to enlarge in a new window)
Fig. 287, 1a-e. *K$. spinulosa (J. Sowerby), silicified specimens, Asbian, Fermanagh, British Isles, $a-c$, shell viewed ventrally, dorsally, laterally, x2.3, d, e$, incomplete dorsal valve viewed posterodorsally, internally, X3.6 (Brunton, 1966).
Synonyms
Geographic Distribution
Eurasia, northern Africa
Age Range
Beginning Stage in Treatise Usage:
Lower Carboniferous (Viséan)
Beginning International Stage:
Visean
Fraction Up In Beginning Stage:
0
Beginning Date:
346.73
Ending Stage in Treatise Usage:
lower Upper Carboniferous (?Bashkirian)
Ending International Stage:
Bashkirian
Fraction Up In Ending Stage:
100
Ending Date:
315.15
Description
Swollen (tuberculate) spine bases, dense, quincuncially arranged spines, thin shelled, weakly developed marginal ridges, cardinal process quadrifid
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Productoidea
Family:
Productellidae
Formal Genus Name and Reference:
Krotovia FREDERICKS, 1928, p. 779
Type Species:
Productus spinulosus J. SOWERBY, 1814 in 1812-1815, p. 155, OD
Images
(Click to enlarge in a new window)
Fig. 287, 1a-e. *K$. spinulosa (J. Sowerby), silicified specimens, Asbian, Fermanagh, British Isles, $a-c$, shell viewed ventrally, dorsally, laterally, x2.3, d, e$, incomplete dorsal valve viewed posterodorsally, internally, X3.6 (Brunton, 1966).
Synonyms
Geographic Distribution
Eurasia, northern Africa
Age Range
Beginning Stage in Treatise Usage:
Lower Carboniferous (Viséan)
Beginning International Stage:
Visean
Fraction Up In Beginning Stage:
0
Beginning Date:
346.73
Ending Stage in Treatise Usage:
lower Upper Carboniferous (?Bashkirian)
Ending International Stage:
Bashkirian
Fraction Up In Ending Stage:
100
Ending Date:
315.15
Description
Swollen (tuberculate) spine bases, dense, quincuncially arranged spines, thin shelled, weakly developed marginal ridges, cardinal process quadrifid