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Strophochonetes
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Chonetoidea
Family:
Strophochonetidae
Formal Genus Name and Reference:
Strophochonetes MUIR-WOOD, 1962, p. 40
Type Species:
Chonetes cingulatus LINDSTRÖM, 1861, p. 374, OD
Images
(Click to enlarge in a new window)
Fig. 240, 3ac. * S. cingulatus (Lindström), Silurian, Baltic, ventral view, dorsal view, dorsal valve interior, x4}^{\\mathbf{X}}$ (Muir-Wood, 1962).
Synonyms
Geographic Distribution
Sweden, Bohemia, Spain, Great Britain, Anticosti, Algeria
Age Range
Beginning Stage in Treatise Usage:
lower Silurian (upper Llandovery)
Beginning International Stage:
Telychian
Fraction Up In Beginning Stage:
0
Beginning Date:
438.59
Ending Stage in Treatise Usage:
lower Silurian (Wenlock)
Ending International Stage:
Homerian
Fraction Up In Ending Stage:
100
Ending Date:
426.74
Description
Shell small, plano- to moderately concavoconvex, well-developed median enlarged costa, long, symmetrically arranged high-angled spines varying from intraverse cyrtomorph proximally to orthomorph vertical distally, cardinal process strongly bilobed internally, anteriorly bounded by cardinal process pit, no median septum, anderidia long, narrow, anteriorly divergent at 60° and isolated on valve floor, inner socket ridges short, thin, as two rounded ridges almost parallel to hinge.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Chonetoidea
Family:
Strophochonetidae
Formal Genus Name and Reference:
Strophochonetes MUIR-WOOD, 1962, p. 40
Type Species:
Chonetes cingulatus LINDSTRÖM, 1861, p. 374, OD
Images
(Click to enlarge in a new window)
Fig. 240, 3ac. * S. cingulatus (Lindström), Silurian, Baltic, ventral view, dorsal view, dorsal valve interior, x4}^{\\mathbf{X}}$ (Muir-Wood, 1962).
Synonyms
Geographic Distribution
Sweden, Bohemia, Spain, Great Britain, Anticosti, Algeria
Age Range
Beginning Stage in Treatise Usage:
lower Silurian (upper Llandovery)
Beginning International Stage:
Telychian
Fraction Up In Beginning Stage:
0
Beginning Date:
438.59
Ending Stage in Treatise Usage:
lower Silurian (Wenlock)
Ending International Stage:
Homerian
Fraction Up In Ending Stage:
100
Ending Date:
426.74
Description
Shell small, plano- to moderately concavoconvex, well-developed median enlarged costa, long, symmetrically arranged high-angled spines varying from intraverse cyrtomorph proximally to orthomorph vertical distally, cardinal process strongly bilobed internally, anteriorly bounded by cardinal process pit, no median septum, anderidia long, narrow, anteriorly divergent at 60° and isolated on valve floor, inner socket ridges short, thin, as two rounded ridges almost parallel to hinge.