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Juresania
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Echinoconchoidea
Family:
Echinoconchidae
Formal Genus Name and Reference:
Juresania FREDERICKS, 1928, p. 786
Type Species:
Productus juresanensis CHERNYSCHEV, 1902, p. 276, OD
Images
(Click to enlarge in a new window)
Fig. 352, 3a-e. *J. juresanensis (Tschernyschew), Schwagerina Limestone, Juresan River, Russia, $a, b$, syntype, specimen viewed posteriorly, laterally, $\\mathrm{X}_{1}$ (Muir-Wood & Cooper, 1960), $c$, anteroventral view of ventral valve, $X_{1}, d$, detail of ventral trail, $X_{3}$ (Lazarev, 1990), $e$, dorsoposterior view of shell with dorsal valve removed, showing short convergent buttress plates (arrow), $\\times_{3}$ (new)."
Synonyms
Geographic Distribution
Arctic Eurasia, western Himalayas
Age Range
Beginning Stage in Treatise Usage:
upper Upper Carboniferous (Kasimovian)
Beginning International Stage:
Kasimovian
Fraction Up In Beginning Stage:
0
Beginning Date:
307.02
Ending Stage in Treatise Usage:
Lower Permian (Asselian)
Ending International Stage:
Asselian
Fraction Up In Ending Stage:
100
Ending Date:
293.52
Description
"Smaller medium size, subquadrate outline with hinge forming widest part, ventral profile weakly geniculate, median sulcation weak, ventral disk with elongate spine bases arranged quincuncially, anterior to disk (trail) nonrugose bands with differentiated spines, elongate thicker spines posteriorly, thinner recumbent spines anteriorly, buttress plates converge anteriorly to median septum."
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Echinoconchoidea
Family:
Echinoconchidae
Formal Genus Name and Reference:
Juresania FREDERICKS, 1928, p. 786
Type Species:
Productus juresanensis CHERNYSCHEV, 1902, p. 276, OD
Images
(Click to enlarge in a new window)
Fig. 352, 3a-e. *J. juresanensis (Tschernyschew), Schwagerina Limestone, Juresan River, Russia, $a, b$, syntype, specimen viewed posteriorly, laterally, $\\mathrm{X}_{1}$ (Muir-Wood & Cooper, 1960), $c$, anteroventral view of ventral valve, $X_{1}, d$, detail of ventral trail, $X_{3}$ (Lazarev, 1990), $e$, dorsoposterior view of shell with dorsal valve removed, showing short convergent buttress plates (arrow), $\\times_{3}$ (new)."
Synonyms
Geographic Distribution
Arctic Eurasia, western Himalayas
Age Range
Beginning Stage in Treatise Usage:
upper Upper Carboniferous (Kasimovian)
Beginning International Stage:
Kasimovian
Fraction Up In Beginning Stage:
0
Beginning Date:
307.02
Ending Stage in Treatise Usage:
Lower Permian (Asselian)
Ending International Stage:
Asselian
Fraction Up In Ending Stage:
100
Ending Date:
293.52
Description
"Smaller medium size, subquadrate outline with hinge forming widest part, ventral profile weakly geniculate, median sulcation weak, ventral disk with elongate spine bases arranged quincuncially, anterior to disk (trail) nonrugose bands with differentiated spines, elongate thicker spines posteriorly, thinner recumbent spines anteriorly, buttress plates converge anteriorly to median septum."