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Current identification/main database link: Catapsydrax unicavus Bolli, Loeblich and Tappan 1957
Original Description
"Test trochospiral, low-spired, perophery rounded: four chambers in last whorl, of which last one is very small and attached on peripheral side; sutures depressed, slightly curved; wall calcareous, finely perforate; aperture at umbilical end of last formed chamber, with a small lip; umbilicus not covered by any bulla.
Size: Maximum diameter of holotype 0.4 mm.
Extra details from original publication
Remarks:- This new species is apparently similar to Catapsydrax unicavus Bolli, Loeblich and Tappan, but is distinguished from it by the much smaller last chamber, instead of a bulla. In this respect, it is somewhat related to Catapsydrax unicavus Blow (not Bolli, Loeblich and Tappan), but differs in the number of chambers of the last whorl.
Occurrence:- From the upper part of the Kyoragi formation to the top of the Sakasegawa group.
Asano, K. (1962). Tertiary Globigerinids from Kyushu, Japan. Science Reports of the Tohoku University, Series 2 (Geology). Special Volume 5: 49-65. gsReferences:
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Globigerina isahayensis compiled by the pforams@mikrotax project team viewed: 18-4-2021
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