†Umbilicosphaera Lohmann 1902 (haptophyte alga)
PaleoDB taxon number: 255407
Parent taxon: Haptophyta according to M. Hyzny et al. 2012
Sister taxa: Coccolithophyceae, Discoasteridae, Helicosphaera, Reticulofenestra, Syracosphaera
Subtaxa: Umbilicosphaera jafari
Ecology: passively mobile planktonic "photoautotroph"