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Paijenborchella

Classification

    Phylum:  
Arthropoda
    Subphylum:  
Crustacea (superclass)
    Class:  
Ostracoda
    Order:  
Podocopida
    Suborder:  
Podocopina
    Superfamily:  
Cytheracea
    Family:  
Schizocytheridae
    Formal Genus Name and Reference:  
Paijenborchella KINGMA, 1948
    Type Species:  
P. iocosa


Images

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Fossil Image
Fig. 256,2. *P. iocosa, Rec., E. Indies(Java), 2a, carapace dors., 2b,c, LV int., RV int., all X30 (46). -- Fig. 256.3. P. eocaenica Triebel, Eoc.(Barton.), Belg., 3a, RV lat., X73 (42), 3b,c, hinge and radial pore canals, enlarged (375). -- Fig. 256,4. P. longicosta Keij, Eoc.(Lutet.), Belg., 4a,b, male carapace R, dors., X78, 4c, female carapace dors., X78, 4d, female LV int., X78 (42)


Synonyms

Payenborchella


Geographic Distribution

U.Cret.-Rec., E.Indies-Eu.-N.Am.


Age Range

    Beginning Stage in Treatise Usage:  
U.Cret.
    Beginning International Stage:  
Cenomanian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
100.5
    Ending Stage in Treatise Usage:  
Rec.
    Ending International Stage:  
Meghalayan
    Fraction Up In Ending Stage:  
100
    Ending Date:  
0


Description

Carapace with obliquely rounded anterior end and long caudal process near lower posterior margin, nearly vertical sulcus marking middle of valves at position of adductor muscles; valves widest near venter where ridge tends to form ala or develop spine, another horizontal ridge crossing sulcus near middle of valves. Hinge heavy, schizodont, with split anterior teeth, crenulate middle element, and lobed posterior tooth in RV; marginal areas broad, with very few radial canals, adductor scars on median ridge, in front of which appear to be single antennal and mandibular scars




References

Kingma, J. T., 1948, Contributions to the knowledge of the Young-Caenozoic Ostracoda from the Malayan region: $118 \mathrm{p} ., 11 \mathrm{pl}$. (Utrecht).


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