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Marginirugus
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Productoidea
Family:
Productidae
Formal Genus Name and Reference:
Marginirugus Sutton, 1938, p. 559
Type Species:
Productus magnus Meek & WORTHEN, 1862, p. 142, OD
Images
(Click to enlarge in a new window)
Fig. 315a-f. *M. magnus (Meek & Worthen), lower Viséan, $a, b$, posterior, lateral views of ventral valve, Illinois, $X_{1}$, $c$, posterior view of dorsal valve showing cardinal process, Illinois, x1}^{2}$, $d$, posteroventral view of ventral valve interior, Illinois, $X 1, e, f$, dorsal valve interior, ventral view of ventral valve, Oklahoma, $X_{1}$ (Muir-Wood & Cooper, 1960).
Synonyms
Geographic Distribution
central North America
Age Range
Beginning Stage in Treatise Usage:
Lower Carboniferous (lower Viséan)
Beginning International Stage:
Visean
Fraction Up In Beginning Stage:
0
Beginning Date:
346.73
Ending Stage in Treatise Usage:
Lower Carboniferous (lower Viséan)
Ending International Stage:
Visean
Fraction Up In Ending Stage:
33
Ending Date:
341.32
Description
Large, weakly plano- to concavoconvex lateral profile with short trails, moderate to deep corpus, fine ribbing entire, rugae posterolaterally, no reticulation, spines only ventrally, thick row close to hinge, posteriorly directed, fine spines sparse on corpus, cardinal process trifid, lateral ridges continue as weak subperipheral rim
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Productoidea
Family:
Productidae
Formal Genus Name and Reference:
Marginirugus Sutton, 1938, p. 559
Type Species:
Productus magnus Meek & WORTHEN, 1862, p. 142, OD
Images
(Click to enlarge in a new window)
Fig. 315a-f. *M. magnus (Meek & Worthen), lower Viséan, $a, b$, posterior, lateral views of ventral valve, Illinois, $X_{1}$, $c$, posterior view of dorsal valve showing cardinal process, Illinois, x1}^{2}$, $d$, posteroventral view of ventral valve interior, Illinois, $X 1, e, f$, dorsal valve interior, ventral view of ventral valve, Oklahoma, $X_{1}$ (Muir-Wood & Cooper, 1960).
Synonyms
Geographic Distribution
central North America
Age Range
Beginning Stage in Treatise Usage:
Lower Carboniferous (lower Viséan)
Beginning International Stage:
Visean
Fraction Up In Beginning Stage:
0
Beginning Date:
346.73
Ending Stage in Treatise Usage:
Lower Carboniferous (lower Viséan)
Ending International Stage:
Visean
Fraction Up In Ending Stage:
33
Ending Date:
341.32
Description
Large, weakly plano- to concavoconvex lateral profile with short trails, moderate to deep corpus, fine ribbing entire, rugae posterolaterally, no reticulation, spines only ventrally, thick row close to hinge, posteriorly directed, fine spines sparse on corpus, cardinal process trifid, lateral ridges continue as weak subperipheral rim