Fig. 18
Stylodictya sp.:
I - typical specimen, well preserved; it is seen that the growth of the chamber is not complete;
II - highly burnished specimen (both from sediment of station 8); III - atypical specimen, highly burnished (station 76); IV - form similar to Stylodictya sp. in the structure of the central part of the disk but differentiated by presence of equatorial margin with small pores (station 371).
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