Original descriptions of taxa - also emended descriptions for a few taxa. For coccolithophores, and many calcispheres, these are pages from the Farinacci & Howe Catalog of Calcareous Nannofossils. In other cases (e.g. non-calcifying haptophytes) the data is directly compiled on this site. The "Catalogue of Calcareous Nannofossils" was originally compiled by Prof A. Farinacci 1969-1989, since 2000 it has been updated and extended by Richard Howe - see The Farinacci and Howe Catalog - an Introduction.
Taxa are sorted alphabetically for simple browsing, or you can use search boxes at the top & bottom of the page
Current identification/main database link: Umbellosphaeraceae Young et al. 2003
Compiled data
Original Description
Translation: Coccosphere dimorphic; coccoliths consist of a funnel-shaped distal part on a flat base. The funnel elements are continuous with the basal plate elements of the central area; a flange may be present around the basal plate, formed by a separate cycle of elements. Coccoliths are variable in size.
Markali, J. & Paasche, E. (1955). On two species of Umbellosphaera, a new marine coccolithophorid genus. Nytt Magasin for Botanikk. 4: 95-100. gs Young, J. R., Geisen, M., Cros, L., Kleijne, A., Probert, I. & Ostergaard, J. B. (2003). A guide to extant coccolithophore taxonomy. Journal of Nannoplankton Research. S1: 1-132. gs References:

![]()
![]() |
Umbellosphaeraceae: Catalog entry compiled by <% compiler %>. Viewed: 16-8-2026
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=55323 Go to Archive.is to create a permanent copy of this page - citation notes |