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Oepikina
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Strophomenida
Superfamily:
Strophomenoidea
Family:
Furcitellinae
Formal Genus Name and Reference:
Oepikina SALMON, 1942, p. 589
Type Species:
O. septata, OD
Images
(Click to enlarge in a new window)
Fig. 143, 2a-e. *O. septata, Doleroides Zone, Lebanon Formation, Caradoc, Knox Brook, near Murfreesboro, Tennessee, $a, b$, ventral, dorsal views of conjoined valves, USNM 117828, x2$, c, ventral interior, USNM 117829b, X2 (Cooper, 1956), $d$, holotype, dorsal interior, USNM 117829c, X2 (new), $e$, ventral interior, USNM 117827b, $\\mathrm{X}_{2}$ (Cooper, 1956).
Synonyms
Oepikinella
Geographic Distribution
North America, Baltic
Age Range
Beginning Stage in Treatise Usage:
Ordovician (Llandeilo)
Beginning International Stage:
Darriwilian
Fraction Up In Beginning Stage:
56.9
Beginning Date:
463.02
Ending Stage in Treatise Usage:
Ordovician (lower Ashgill)
Ending International Stage:
Katian
Fraction Up In Ending Stage:
85
Ending Date:
446.34
Description
Transverse outline, concavoconvex profile with weak geniculation developed in older specimens, unequally parvicostellate ornament, small pseudodeltidium, vestigial chilidium, crenulate teeth, dental plates short, weak, ventral muscle field poorly impressed, notothyrial platform well developed, extending anteriorly into variably developed, usually prominent dorsal median septum, two or more pairs of strong transmuscle septa, distinctive dorsal subperipheral rim
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Strophomenida
Superfamily:
Strophomenoidea
Family:
Furcitellinae
Formal Genus Name and Reference:
Oepikina SALMON, 1942, p. 589
Type Species:
O. septata, OD
Images
(Click to enlarge in a new window)
Fig. 143, 2a-e. *O. septata, Doleroides Zone, Lebanon Formation, Caradoc, Knox Brook, near Murfreesboro, Tennessee, $a, b$, ventral, dorsal views of conjoined valves, USNM 117828, x2$, c, ventral interior, USNM 117829b, X2 (Cooper, 1956), $d$, holotype, dorsal interior, USNM 117829c, X2 (new), $e$, ventral interior, USNM 117827b, $\\mathrm{X}_{2}$ (Cooper, 1956).
Synonyms
Oepikinella
Geographic Distribution
North America, Baltic
Age Range
Beginning Stage in Treatise Usage:
Ordovician (Llandeilo)
Beginning International Stage:
Darriwilian
Fraction Up In Beginning Stage:
56.9
Beginning Date:
463.02
Ending Stage in Treatise Usage:
Ordovician (lower Ashgill)
Ending International Stage:
Katian
Fraction Up In Ending Stage:
85
Ending Date:
446.34
Description
Transverse outline, concavoconvex profile with weak geniculation developed in older specimens, unequally parvicostellate ornament, small pseudodeltidium, vestigial chilidium, crenulate teeth, dental plates short, weak, ventral muscle field poorly impressed, notothyrial platform well developed, extending anteriorly into variably developed, usually prominent dorsal median septum, two or more pairs of strong transmuscle septa, distinctive dorsal subperipheral rim