Cyclagelosphaera casarubrensis
Set number: 1745
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Set number: 3387
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Set number: 3386
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Set number: 3385
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Set number: 3402
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Cyclagelosphaera casarubrensis Black, 1973
Cyclagelosphaera bergeri Roth, 1978
Holotype of Cyclagelosphaera bergeri Roth, 1978 (all the same specimen by Perch-Nielsen, 1968)
Species of Cyclagelosphaera exhibit a closed central area by broad, slightly distally protruding double tube cycles. The extinction lines are dextrogyre on the distal side, and their typical angle is about 73° on the distal shield and 60° on the tube cycle. Cyclagelosphaera casarubrensis differs from Cyclagelosphaera margerelii in that it has broader tube cycles.
Black, M. 1973. British Lower Cretaceous Coccoliths. I-Gault Clay (Part 2). Palaeontographical Society Monograph 127: 49-112.
Holotype
Cyclagelosphaera casarubrensis
Black, 1973
Middle Albian
Mildenhall, Southeastern England.