Yes, foraminiferans and radiolarians belong to the subphylum sarcodines. Both have skeletons that fossilize easily and have fossil records that date back to the Cambrian.
Dinoflagellates are both autotroph and heterotroph.
Radiolarians and Forams
Potential sources of food can also influence Radiolaria behavior. Although they may possess symbiotic relationships and can act as particle feeders (meaning they just hang out and wait for food), radiolarians have a darker side to them -- they can also act as predators. When feeding as predators, Radiolaria may capturediatoms, tintinnids, and other calcareous organisms by ingesting them into their central cavity. They trap their prey on the peripheral network of rhizopodia. The symbiotic relationship that radiolarians share with dinoflagellates enable them to use a jelly-like layer to trap their prey.
We know that limestone is made up of those things, and some others. We also know that chalk, a kind of limestone, is composed mainly of tiny shells made of a mineral called calcite.
they are eukaryotic
Silica
radiolarians
Yes, foraminiferans and radiolarians belong to the subphylum sarcodines. Both have skeletons that fossilize easily and have fossil records that date back to the Cambrian.
Dinoflagellates are both autotroph and heterotroph.
Amoebae, seaweeds, water molds, radiolarians, diatoms
Siliceous
Radiolarians and Forams
Radiolarians and Forminiferans.
Aulocantha is a radiolarian protist...interestingly also having a huge 2n chromosome complement of 1600.
Body parts include Endoplasm, ectoplasm (or calymma), and siliceous (opaline) skeleton. Alveoli are used as floatation devices.
they produce silicous rocks(chert).unlike foramaniferas produces limestone caco3