Coccolithophyceae - Syracosphaerales - Umbellosphaeraceae
Full reference: J. R. Young, M. Geisen, L. Cros, A. Kleijne, C. Sprengel, I. Probert, and J. Ostergaard. 2003. A guide to extant calcareous nannoplankton taxonomy. Journal of Nannoplankton Research Special Issue 1:1-125
Parent taxon: Syracosphaerales according to R.W. Jordan et al. 2004
Sister taxa: Calciosoleniaceae, Rhabdosphaeraceae, Syracosphaeraceae
Subtaxa: Umbellosphaera
Ecology: passively mobile planktonic "photoautotroph"
Distribution:
• NN21 of Indian Ocean (24 collections), North Pacific (15), South Pacific (9)
• Brunhes of North Pacific (1)
• Quaternary of Indian Ocean (78), North Pacific (6), South Pacific (33)
• NN16 of Indian Ocean (4), North Pacific (1)
• Pliocene to Pleistocene of Indian Ocean (5)
• Pliocene of Indian Ocean (7), North Pacific (2)
• NN12 of Indian Ocean (1)
• G. tumida/G. nepenthes CRZ - Atlantic of Indian Ocean (1)
• Miocene of North Pacific (1), South Pacific (5)
• Eocene of North Atlantic (2)
Total: 195 collections including 232 occurrences