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The AAPG/Datapages Combined Publications Database
Use of Normal Pores in Taxonomy of Ostracoda
Harbans S. Puri, Bruce E. Dickau
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 Normal pore without a lip.
- A 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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