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1.1.1 basic terms
In this section basic terms are described
 Part general  Chapter introduction  Section basic terms
Foraminifera (hole bearers) or forams for short, are a large phylum of amoeboid protozoans (single celled) with reticulating pseudopods, fine strands of cytoplasm that branch and merge to form a dynamic net. They usually produce a test (or inner shell) which can have one or more chambers, and are commonly made of calcium carbonate (CaCO3) or particles glued together. The tests are usually less than 0.5 mm in size, but can range up to 20 cm. Foraminifera are among the most abundant and scientifically important groups of marine organisms. Foraminifera live in all marine environments from the greatest depths to the highest tide levels, from the equator to the poles and in freshwater. Rewritten from WMFD
 Part general  Chapter introduction  Section basic terms
2.1.1 basic terms
In this section basic terms on systematics are described
 Part systematics  Chapter introduction  Section basic terms
The most important parts of the foraminiferid cell are enclosed within an inner shell called test. It is variously composed of secreted organic matter (tectin), secreted minerals (calcite, aragonite or silica) or of agglutinated particles. This test consists of a single (unilocular)chamber or multiple (multilocular) chambers mostly less than 1 mm across and each interconnected by one or several openings called foramen/foramina.
 Part systematics  Chapter introduction  Section basic terms
3.3.1 basic terms
In this section basic terms on ecology are described
 Part biology  Chapter ecology  Section basic terms
benthic foraminifera
They live on, in, or near the bottom of the ocean, also known as the benthic zone. They are capable to live in different habitats from tidal pools along the foreshore, out to the continental shelf, and then down to the abyssal depths. They may not be stationary but move around a little with their pseudopodia or have a planktonic phase in their life cycle. More than 5000 recent species are known in contrast to only about 40 in planktonics. This variability makes them a valuable indicator for present and past environments and their changes.
 Part biology  Chapter ecology  Section basic terms
planktonic foraminifera
Planktonic foraminifera live drifting in the open ocean and not nearshore. They are distributed worldwide. Planktonic forams are indicators of ocean currents and worldwide climate changes, as the species-distribution directly correlates with salinity and water-temperature. Planktonic foraminifera commonly live with photosynthetic symbionts. In modern oceans they are so common, that their tests - after death sinking to the ground - form thick sedimentary layers like the Globigerina ooze.
 Part biology  Chapter ecology  Section basic terms

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