Calcareous Nannofossils
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Description: Information on these organisms including their fossil record, classification, biology and life cycle with a number of images of individual species.
Calcareous nannofossils include the coccoliths and coccospheres of haptophyte algae and the associated nannoliths which are of unknown provenance. The organism which creates the coccosphere is called a coccolithophore, they are phytoplankton (autotrophs that contain chloroplasts and photosynthesise). Their calcareous skeletons are found in marine deposits often in vast numbers, sometimes making up the major component of a particular rock, such as the chalk of England. One freshwater species has been reported. Formally coccolithophores are separated from other phytoplankton such as diatoms by the presence of a third flagella-like appendage called a haptonema, although the flagella bearing stage is often only one of a multi-stage life cycle.
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WEBSITE Info
| Page title: | Calcareous Nannofossils |
| Keywords: | micropalaeontology, micropaleontology, micropal, microfossils, nannofossils, acritarchs, calcareous nannofossils, chitinozoa, conodonts, diatoms, dinoflagellates, dinocycsts, forams, foraminifera, ostracods, palynology, rads, radiolaria, spores, pollen |
| Description: | This teaching and learning web-site is intended as an introduction to micropalaeontology. Micropalaeontology is the study of microfossils (any fossil generally less than 1mm in size). This page covers calcareous nannofossils. |
| IP-address: | 144.82.111.20 |