Figure F15. Plate showing biostratigraphically important radiolarian species, Hole U1381C. A. Unit I. 1. Didymocyrtis tetrathalamus. 2. Amphirhopalum angulare. 3. Anthocyrtidium sp. 4. Botryostrobus auritus. 5. Dictyophimus infabricatus. 6. Neophrospyris renilla. 7. Spongaster tetra. 8. Dictyocorne sp. 9. Zygocircus productus. B. Unit II. 1. Didymocyrtis violina. 2. Didymocyrtis laticonus. 3. Cryptocapsella cornuta. 4. Cryptocapsella tetrapera. 5. Lithopera renzae. 6. Stichocorys armata. 7. Spyirocyrtis subtilis. 8. Liriospyris parkerae. 9. Trisolenia megalactis costlowi. 10. Periphaena decora.
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