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Rhynchonella
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Rhynchonellida
Superfamily:
Rhynchonelloidea
Family:
Rhynchonellidae
Formal Genus Name and Reference:
Rhynchonella Fischer de WALDHEIM, 1809, p. 35
Type Species:
R. loxiae, OD
Images
(Click to enlarge in a new window)
Fig. 871, $1 a-v . * R$. loxiae, upper Volgian, Khoroschevo, near Moscow, Russia, $a-e$, dorsal, lateral, anterior, ventral, posterior, BMNH B.39132, x1$ (new), $f-v$, transverse serial sections, distances in mm from ventral umbo, $0.3, 0.6, 1.0$, 1.3, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.3, 2.5, 2.7, 3.1, 3.2, 3.4, 3.6, BMNH B. 1325 (Ager, 1957)."
Synonyms
Eurhynchonella, Rhynchonellis, Rhyngonella, Rhinchonella; Rhynconella
Geographic Distribution
Britain, France, Germany, Poland, Russia, Slovakia, Bulgaria, Mexico
Age Range
Beginning Stage in Treatise Usage:
Upper Jurassic (Oxfordian)
Beginning International Stage:
Oxfordian
Fraction Up In Beginning Stage:
0
Beginning Date:
161.53
Ending Stage in Treatise Usage:
Lower Cretaceous (Valanginian, ?Barremian)
Ending International Stage:
Barremian
Fraction Up In Ending Stage:
100
Ending Date:
121.4
Description
Small to medium, subtriangular, gibbous, nearly convexiplane and cynocephalous, dorsal fold high, ventral sulcus somewhat flattened, smooth stage long, costae few and sharp anteriorly, commissure uniplicate, acuminate to paucidentate, beak small, slightly incurved. Dental plates strong, septalium shallow, dorsal median septum short, crura short, raduliform.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Rhynchonellida
Superfamily:
Rhynchonelloidea
Family:
Rhynchonellidae
Formal Genus Name and Reference:
Rhynchonella Fischer de WALDHEIM, 1809, p. 35
Type Species:
R. loxiae, OD
Images
(Click to enlarge in a new window)
Fig. 871, $1 a-v . * R$. loxiae, upper Volgian, Khoroschevo, near Moscow, Russia, $a-e$, dorsal, lateral, anterior, ventral, posterior, BMNH B.39132, x1$ (new), $f-v$, transverse serial sections, distances in mm from ventral umbo, $0.3, 0.6, 1.0$, 1.3, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.3, 2.5, 2.7, 3.1, 3.2, 3.4, 3.6, BMNH B. 1325 (Ager, 1957)."
Synonyms
Eurhynchonella, Rhynchonellis, Rhyngonella, Rhinchonella; Rhynconella
Geographic Distribution
Britain, France, Germany, Poland, Russia, Slovakia, Bulgaria, Mexico
Age Range
Beginning Stage in Treatise Usage:
Upper Jurassic (Oxfordian)
Beginning International Stage:
Oxfordian
Fraction Up In Beginning Stage:
0
Beginning Date:
161.53
Ending Stage in Treatise Usage:
Lower Cretaceous (Valanginian, ?Barremian)
Ending International Stage:
Barremian
Fraction Up In Ending Stage:
100
Ending Date:
121.4
Description
Small to medium, subtriangular, gibbous, nearly convexiplane and cynocephalous, dorsal fold high, ventral sulcus somewhat flattened, smooth stage long, costae few and sharp anteriorly, commissure uniplicate, acuminate to paucidentate, beak small, slightly incurved. Dental plates strong, septalium shallow, dorsal median septum short, crura short, raduliform.