Welcome to the Treatise on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Cyrtopleura
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Myoida
Suborder:
Pholadina
Superfamily:
Pholadacea
Family:
Pholadidae (piddocks)
Subfamily:
Pholadinae
Formal Genus Name and Reference:
Cyrtopleura TRYON, 1862, p. 201
Type Species:
Pholas crucifera Sowerby, 1849, p. 489 (=Pholas cruciger Sowerby, 1834, p. 69), SD STOLICZKA, 1871, p. 22
Images
(Click to enlarge in a new window)
Fig. E165, 3; E171,2. *C. (C.) eruciger (SOWERBY), W. Panama; E165,3a, protoplax (dorsal); E165,3b, mesoplax (dorsal); E171,2a,b, LV ext., RV int., Xl; E171,2c,d, dorsal and ventral views of op- posed valves showing large chondrophore and small apophysis, X1 (921a)
Synonyms
Geographic Distribution
E.Pac.-E.N.Am.-C.Am.-E.S. Am.
Age Range
Beginning Stage in Treatise Usage:
Mio.
Beginning International Stage:
Aquitanian
Fraction Up In Beginning Stage:
0
Beginning Date:
23.04
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Shell rounded or beaked anteriorly, accessory plates consisting of thin, largely chitinous, triangular to T-shaped protoplax and heavy transverse, calcareous mesoplax which may be in one or two pieces, umbonal reflection well separated from umbos and supported at posterior end where sockets are formed for reception of anterior projections of mesoplax, apophyses broad and flattened, or more or less spoon-shaped.
References
Tryon, G. W., 1862, On the classification and synonymy of the Recent species of Pholadidae: Acad. Nat. Sci. Philadelphia, Proc., p. 191-221.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Myoida
Suborder:
Pholadina
Superfamily:
Pholadacea
Family:
Pholadidae (piddocks)
Subfamily:
Pholadinae
Formal Genus Name and Reference:
Cyrtopleura TRYON, 1862, p. 201
Type Species:
Pholas crucifera Sowerby, 1849, p. 489 (=Pholas cruciger Sowerby, 1834, p. 69), SD STOLICZKA, 1871, p. 22
Images
(Click to enlarge in a new window)
Fig. E165, 3; E171,2. *C. (C.) eruciger (SOWERBY), W. Panama; E165,3a, protoplax (dorsal); E165,3b, mesoplax (dorsal); E171,2a,b, LV ext., RV int., Xl; E171,2c,d, dorsal and ventral views of op- posed valves showing large chondrophore and small apophysis, X1 (921a)
Synonyms
Geographic Distribution
E.Pac.-E.N.Am.-C.Am.-E.S. Am.
Age Range
Beginning Stage in Treatise Usage:
Mio.
Beginning International Stage:
Aquitanian
Fraction Up In Beginning Stage:
0
Beginning Date:
23.04
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Shell rounded or beaked anteriorly, accessory plates consisting of thin, largely chitinous, triangular to T-shaped protoplax and heavy transverse, calcareous mesoplax which may be in one or two pieces, umbonal reflection well separated from umbos and supported at posterior end where sockets are formed for reception of anterior projections of mesoplax, apophyses broad and flattened, or more or less spoon-shaped.
References
Tryon, G. W., 1862, On the classification and synonymy of the Recent species of Pholadidae: Acad. Nat. Sci. Philadelphia, Proc., p. 191-221.