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Costa
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Podocopida
Suborder:
Podocopina
Superfamily:
Cytheracea
Family:
Trachyleberididae
Formal Genus Name and Reference:
Costa NEVIANI, 1928
Type Species:
Cytherina edwardsi Roemer, 1838, SD HOWE, 1955
Images
(Click to enlarge in a new window)
Fig. 261,5. *C. edwardsi (Roemer), Plio.-Pleist., Fr.-Italy, 5a,b, RV lat., int., X75 (5a, 301, 5b, 42)
Synonyms
Rectotrachyleberis
Geographic Distribution
Eu.-Asia-Afr.-?N.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
Hinge holamphidont, Ornament dominated by 3 subparallel ridges, with median ridge slightly diagonal to length, sloping down gently toward anterior end and bent downward rather abruptly at posterior end. Adductor muscle scars 4, in vertical row; antennal scar V-shaped, opening upward.
References
Museum or Author Information
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Podocopida
Suborder:
Podocopina
Superfamily:
Cytheracea
Family:
Trachyleberididae
Formal Genus Name and Reference:
Costa NEVIANI, 1928
Type Species:
Cytherina edwardsi Roemer, 1838, SD HOWE, 1955
Images
(Click to enlarge in a new window)
Fig. 261,5. *C. edwardsi (Roemer), Plio.-Pleist., Fr.-Italy, 5a,b, RV lat., int., X75 (5a, 301, 5b, 42)
Synonyms
Rectotrachyleberis
Geographic Distribution
Eu.-Asia-Afr.-?N.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
Hinge holamphidont, Ornament dominated by 3 subparallel ridges, with median ridge slightly diagonal to length, sloping down gently toward anterior end and bent downward rather abruptly at posterior end. Adductor muscle scars 4, in vertical row; antennal scar V-shaped, opening upward.