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Cetacella
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Podocopida
Suborder:
Podocopina
Superfamily:
Cypridacea
Family:
Cyclocyprididae
Formal Genus Name and Reference:
Cetacella MARTIN, 1958
Type Species:
C. inermis
Images
(Click to enlarge in a new window)
Fig. 169,1. *C. inermis, Ger.; 1a,b, LV lat., RV lat.) X60; 1c, carapace, dors., X60 (242).
Synonyms
Geographic Distribution
Eu.
Age Range
Beginning Stage in Treatise Usage:
U.Jur. (Kimm.)
Beginning International Stage:
Kimmeridgian
Fraction Up In Beginning Stage:
0
Beginning Date:
154.78
Ending Stage in Treatise Usage:
U.Jur. (Kimm.)
Ending International Stage:
Kimmeridgian
Fraction Up In Ending Stage:
100
Ending Date:
149.24
Description
Suboval in side view, LV larger than RV, characterized by regular finely ribbed surface ornament. Hinge composed of ridges and furrows, muscle field with 6 adductor spots, 2 smaller mandibular spots obliquely anteroventral from central field, and 1 or 2 antennal spots anterodorsal therefrom. Sexual dimorphism moderately strong, reflected in lengths and heights of carapaces. [Fresh-water to brackish environment.]
References
Museum or Author Information
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Podocopida
Suborder:
Podocopina
Superfamily:
Cypridacea
Family:
Cyclocyprididae
Formal Genus Name and Reference:
Cetacella MARTIN, 1958
Type Species:
C. inermis
Images
(Click to enlarge in a new window)
Fig. 169,1. *C. inermis, Ger.; 1a,b, LV lat., RV lat.) X60; 1c, carapace, dors., X60 (242).
Synonyms
Geographic Distribution
Eu.
Age Range
Beginning Stage in Treatise Usage:
U.Jur. (Kimm.)
Beginning International Stage:
Kimmeridgian
Fraction Up In Beginning Stage:
0
Beginning Date:
154.78
Ending Stage in Treatise Usage:
U.Jur. (Kimm.)
Ending International Stage:
Kimmeridgian
Fraction Up In Ending Stage:
100
Ending Date:
149.24
Description
Suboval in side view, LV larger than RV, characterized by regular finely ribbed surface ornament. Hinge composed of ridges and furrows, muscle field with 6 adductor spots, 2 smaller mandibular spots obliquely anteroventral from central field, and 1 or 2 antennal spots anterodorsal therefrom. Sexual dimorphism moderately strong, reflected in lengths and heights of carapaces. [Fresh-water to brackish environment.]