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Ovocytheridea

Classification

    Phylum:  
Arthropoda
    Subphylum:  
Crustacea (superclass)
    Class:  
Ostracoda
    Order:  
Podocopida
    Suborder:  
Podocopina
    Superfamily:  
Cytheracea
    Family:  
Cytherideidae
    Subfamily:  
Cytherideinae
    Formal Genus Name and Reference:  
Ovocytheridea GREKOFF, 1951
    Type Species:  
O. nuda


Images

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Fossil Image
Fig. 209,2. *O. nllda, Campan., Cameroons; 2a,b. male carapace R, dors., X60; 2c·e. female carapace R, dors., vent., X60 (293). -- Fig. 209,3. O. symnufl·ica REYMENT, Coniac., N.Nigeria; 3a-c. carapace R, dors., vent., X40 (293). -- Fig. 209, 4. O. apitormis REYMENT, Coniac., N.Nigeria; RV int., X60 (293). [HOWE-REYMENT.]


Synonyms



Geographic Distribution

Afr.


Age Range

    Beginning Stage in Treatise Usage:  
U.Cret. (Coniac.)
    Beginning International Stage:  
Coniacian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
89.39
    Ending Stage in Treatise Usage:  
U.Cret. (Santon.)
    Ending International Stage:  
Santonian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
83.65


Description

Shape similar to that of Cytheridea, but thickest behind middle, some species with posterior extension, smooth; hinge of RV with strongly crenulated terminal teeth and uniting crenulated furrow, also accommodation groove; strongly notched terminal sockets and uniting crenulated bar; muscle scars in row of 4, with another above in front; marginal areas with straight canals; sexual dimorphism pronounced.




References



Museum or Author Information