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Fig. 5. Global distribution
maps ofa. Praecalcigonellum
schizosaeptum, b. Scrippsie/la
crystallina, c. Scrippsie/la
lachrymosa, d. Scrippsiella
trifida. For explanation of the
symbols see Fig. I.
Fig. 6. Global distribution maps
ofa. Calciodinellum operosum,
b. Orthopithonella granifera,
c. Scrippsiella sweenyae,
d. Sphaerodinella tuberosa.
For explanation of the symbols
see Fig. I.