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Cypricardinia
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Crassatellacea
Family:
Cardiniidae
Formal Genus Name and Reference:
Cypricardinia HALL, 1859 [pro C. lamellosa HALL, 1859; non C. lamellosa (Sanguinolaria lamellosa) GOLDFUSS, 1840]
Type Species:
C. halli BEUSHAUSEN, 1897, OD
Images
(Click to enlarge in a new window)
Fig. E80,1a,b. C. lamellosa (Goldfuss), M.Dev., Ger., 1a, b, LV and RV hinges, enl. (Chavan, n, from Beushausen). Fig. E80,1c,d. *C. halli Beushausen, L.Dev.(L. Helderberg.), USA(N.Y.), 1c,d, LV ext., both valves dorsal, X3 (373).
Synonyms
Synopleura
Geographic Distribution
Ord.(Llandeilo), Eu., Sil.(Medinan)-L. Perm., cosmop.
Age Range
Beginning Stage in Treatise Usage:
Ord.(Llandeilo), Sil.(Medinan)
Beginning International Stage:
Darriwilian
Fraction Up In Beginning Stage:
56.9
Beginning Date:
463.02
Ending Stage in Treatise Usage:
L. Perm.
Ending International Stage:
Kungurian
Fraction Up In Ending Stage:
100
Ending Date:
274.37
Description
RV more convex than LV, very inequilateral, modioliform in shape, beaks anterior, outline variable, wider posteriorly, umbonal slope prominent, often obtusely angular surface with strong imbricating concentric equidistant lamellose undulations and commonly with radiating costellae; valves crossed obliquely by shallow byssal sulcus; dentition (AlII-3a) , 3b, 5b, PI, PIlI / (AIV), AlI-2, 4b, PlI.
References
Hall, James, 1859, Palaeontology, v. 3, pt. 1, containing descriptions and figures of the organic remains of the lower Helderberg group and the Oriskany sandstone: Geol. Survey New York, 1855-59, 532 p., text fig. (Albany).
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Crassatellacea
Family:
Cardiniidae
Formal Genus Name and Reference:
Cypricardinia HALL, 1859 [pro C. lamellosa HALL, 1859; non C. lamellosa (Sanguinolaria lamellosa) GOLDFUSS, 1840]
Type Species:
C. halli BEUSHAUSEN, 1897, OD
Images
(Click to enlarge in a new window)
Fig. E80,1a,b. C. lamellosa (Goldfuss), M.Dev., Ger., 1a, b, LV and RV hinges, enl. (Chavan, n, from Beushausen). Fig. E80,1c,d. *C. halli Beushausen, L.Dev.(L. Helderberg.), USA(N.Y.), 1c,d, LV ext., both valves dorsal, X3 (373).
Synonyms
Synopleura
Geographic Distribution
Ord.(Llandeilo), Eu., Sil.(Medinan)-L. Perm., cosmop.
Age Range
Beginning Stage in Treatise Usage:
Ord.(Llandeilo), Sil.(Medinan)
Beginning International Stage:
Darriwilian
Fraction Up In Beginning Stage:
56.9
Beginning Date:
463.02
Ending Stage in Treatise Usage:
L. Perm.
Ending International Stage:
Kungurian
Fraction Up In Ending Stage:
100
Ending Date:
274.37
Description
RV more convex than LV, very inequilateral, modioliform in shape, beaks anterior, outline variable, wider posteriorly, umbonal slope prominent, often obtusely angular surface with strong imbricating concentric equidistant lamellose undulations and commonly with radiating costellae; valves crossed obliquely by shallow byssal sulcus; dentition (AlII-3a) , 3b, 5b, PI, PIlI / (AIV), AlI-2, 4b, PlI.
References
Hall, James, 1859, Palaeontology, v. 3, pt. 1, containing descriptions and figures of the organic remains of the lower Helderberg group and the Oriskany sandstone: Geol. Survey New York, 1855-59, 532 p., text fig. (Albany).