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The AAPG/Datapages Combined Publications Database
AAPG Bulletin
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Abstract:
On the lateral surface of the carapace, ostracodes have radial pores of two types--"simple" and sieve. The functions of these two pore types are not fully known. Studies of the carapace with a scanning electron microscope reveals differences between the pores of Myodocopa, Platycopina, Cladocopa, and Podocopina. Sieve pores demonstrate the greatest dimorphism and are confined to the superfamily Cytheracea. A basic pattern of pores was formulated.
Type A:
Single pore with a sensory hair. A^prime Normal pore without a lip. A^Prime Normal pore with a lip.
Type B:
A sieve plate without a well-defined central or subcentral pore with a sensory hair.
Type C:
Type A superimposed on Type B. A sieve plate with a pore and sensory hair emerging from its center.
Type D:
Combination of Type A and Type B. A sieve plate, and a separate single pore with a sensory hair.
These types can be utilized in future systematic studies of Ostracoda.
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