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forams [05/05/2023 14:15] mike_gssforams [05/05/2023 14:16] (current) mike_gss
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 Forams are single-celled animals (“protista”), heterotrophic (which means they require food from an external source, just like we do) and some are a heterotrophic/symbiotic combination. Think of an Amoeba from your high-school biology class, but with a shell. Most have a mineralised wall of some kind (there are some rare “naked” forms): a secreted wall will be calcareous (calcium carbonate - CaCO3) of various crystal arrangements; an agglutinated wall can be comprised of any externally-acquired material (usually sand/silt/mud particles) with a calcareous, non-calcareous or organic cement. Only certain benthic (bottom-dwelling) forms exhibit agglutinated shells. Forams are single-celled animals (“protista”), heterotrophic (which means they require food from an external source, just like we do) and some are a heterotrophic/symbiotic combination. Think of an Amoeba from your high-school biology class, but with a shell. Most have a mineralised wall of some kind (there are some rare “naked” forms): a secreted wall will be calcareous (calcium carbonate - CaCO3) of various crystal arrangements; an agglutinated wall can be comprised of any externally-acquired material (usually sand/silt/mud particles) with a calcareous, non-calcareous or organic cement. Only certain benthic (bottom-dwelling) forms exhibit agglutinated shells.
  
-Forams are single or (mainly) multi-chambered. All chambers possess one or more openings (Latin; “foramen” - which gives them their name) which connect to other chambers. The arrangement of chambers can show a great many forms from fully coiled multichambered forms to tubular single chambered types. The combination of that and other features has resulted in the identifications of tens of thousands of living and fossil species. They inhabit virtually every marine & marginal marine aquatic niche on earth. They are biostratigraphically and palaeoenvironmentally significant and the predominant subject of study for microfossil specialists+Forams are single or (mainly) multi-chambered. All chambers possess one or more openings (Latin; “foramen” - which gives them their name) which connect to other chambers. The arrangement of chambers can show a great many forms from fully coiled multichambered forms to tubular single chambered types. The combination of that and other features has resulted in the identifications of tens of thousands of living and fossil species. They inhabit virtually every marine & marginal marine aquatic niche on earth. They are biostratigraphically and palaeoenvironmentally significant and the predominant subject of study for microfossil specialists.
  
 **Subgroup: Planktonic Forams** **Subgroup: Planktonic Forams**
forams.1683296119.txt.gz · Last modified: 05/05/2023 14:15 by mike_gss

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