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Mesodouvillina
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Strophomenida
Superfamily:
Strophomenoidea
Family:
Amphistrophiidae
Formal Genus Name and Reference:
Mesodouvillina WILLIAMS, 1950, p. 281
Type Species:
Stropheodonta subinterstrialis seretensis KOZŁOWSKI, 1929, p. 96, OD
Images
(Click to enlarge in a new window)
Fig. 164, 1a-d. *M. subinterstrialis seretensis (KozŁowsKI), Bogdanovka Beds, Bogdanovka, Podolia, Ukraine, $a-c$, neotype, ventral, dorsal, lateral views of conjoined valves, CNIGR 33/11475, x1.5$, $d$, ventral interior, CNIGR 32/11475, x1.5$ (Bassett, new).-FIG. 164, Ie. M. s. subinterstrialis, Mitkov Beds, Borshchov Stage, Lochkovian, Lanovtsy, Podolia, Ukraine, dorsal interior, CNIGR 30/11475, X1.5 (Bassett, new).-Fig. 164, 1f-h. M. invasor (Johnson), Acrospirifer kobehana Zone, Emsian, Sulphur Spring Range, Great Basin, Nevada, $f, g$, holotype, ventral exterior, interior, USNM 156938, x1.5, h$, dorsal interior, USNM 156941, X1.5 (Johnson, new).
Synonyms
Mesodouviella,
Geographic Distribution
cosmopolitan
Age Range
Beginning Stage in Treatise Usage:
Silurian (Sheinwoodian)
Beginning International Stage:
Sheinwoodian
Fraction Up In Beginning Stage:
0
Beginning Date:
432.93
Ending Stage in Treatise Usage:
Devonian (Eifelian)
Ending International Stage:
Eifelian
Fraction Up In Ending Stage:
100
Ending Date:
385.3
Description
Strongly to gently concavoconvex profile; unequally parvicostellate ornament; small interarea with pseudodeltidium, small chilidium; denticles along half to two-thirds of hinge line; straight or slightly curved muscle-bounding ridges to subtriangular ventral muscle field, open anteriorly; cardinal process posteroventrally to posteriorly directed; short thin divergent socket plates; weak curved dorsal muscle-bounding ridges; dorsal side septa usually absent; dorsal subperipheral rim variably developed.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Strophomenida
Superfamily:
Strophomenoidea
Family:
Amphistrophiidae
Formal Genus Name and Reference:
Mesodouvillina WILLIAMS, 1950, p. 281
Type Species:
Stropheodonta subinterstrialis seretensis KOZŁOWSKI, 1929, p. 96, OD
Images
(Click to enlarge in a new window)
Fig. 164, 1a-d. *M. subinterstrialis seretensis (KozŁowsKI), Bogdanovka Beds, Bogdanovka, Podolia, Ukraine, $a-c$, neotype, ventral, dorsal, lateral views of conjoined valves, CNIGR 33/11475, x1.5$, $d$, ventral interior, CNIGR 32/11475, x1.5$ (Bassett, new).-FIG. 164, Ie. M. s. subinterstrialis, Mitkov Beds, Borshchov Stage, Lochkovian, Lanovtsy, Podolia, Ukraine, dorsal interior, CNIGR 30/11475, X1.5 (Bassett, new).-Fig. 164, 1f-h. M. invasor (Johnson), Acrospirifer kobehana Zone, Emsian, Sulphur Spring Range, Great Basin, Nevada, $f, g$, holotype, ventral exterior, interior, USNM 156938, x1.5, h$, dorsal interior, USNM 156941, X1.5 (Johnson, new).
Synonyms
Mesodouviella,
Geographic Distribution
cosmopolitan
Age Range
Beginning Stage in Treatise Usage:
Silurian (Sheinwoodian)
Beginning International Stage:
Sheinwoodian
Fraction Up In Beginning Stage:
0
Beginning Date:
432.93
Ending Stage in Treatise Usage:
Devonian (Eifelian)
Ending International Stage:
Eifelian
Fraction Up In Ending Stage:
100
Ending Date:
385.3
Description
Strongly to gently concavoconvex profile; unequally parvicostellate ornament; small interarea with pseudodeltidium, small chilidium; denticles along half to two-thirds of hinge line; straight or slightly curved muscle-bounding ridges to subtriangular ventral muscle field, open anteriorly; cardinal process posteroventrally to posteriorly directed; short thin divergent socket plates; weak curved dorsal muscle-bounding ridges; dorsal side septa usually absent; dorsal subperipheral rim variably developed.