kozmik frakture Posted October 13, 2016 Share Posted October 13, 2016 I'm handy with a microscope; I have a nice low power stereo dissecting scope & 4-5 other microscopes plus a variety of hand lenses, hand held field microscope. I can do well enough with rock & mineral identification and not too bad with fossils. However, I'm not sure of what I'm looking when examining samples under the scope. Could use some guidance. Kim Link to comment Share on other sites More sharing options...
doushantuo Posted October 13, 2016 Share Posted October 13, 2016 the following groups of micro-and nannofossils exist: foraminifera (incl.thecamoebae,xenophyphores and allogromiids) radiolaria diatoms silicoflagellates/ebridians dinoflagellates tintinnids chrysophytes conodonts fungal fragments scolecodonts(worm jaws) vertebrate debris/ichthyloliths/fish scales chitinozoa(of unknown affinity) acritarchs graptolite fragments coccoliths plant spores arthropod cuticle fragments plant cuticle(maceral) poriferan(sponge)needles echinoderm ossicles ascidian spicules gastropod opercula(rare) larvae of macrofossil groups(rare) 1 Link to comment Share on other sites More sharing options...
jpc Posted October 13, 2016 Share Posted October 13, 2016 What age rocks are you looking at? Marine or terrestrial? Link to comment Share on other sites More sharing options...
Foram-Mike Posted October 20, 2016 Share Posted October 20, 2016 Dear Kim, I suggest you try to find recent and fossil foraminifera. They come in a great variety and huge numbers at sizes between 0,1µm to 3µm. In MD you have beaches and estuaries where you will easily find recent stuff as a start. Pick from different marine coastal spots at low tide close to water line different sand and mud samples of 500g. Wash it over a sieve of 0,1mm mesh size. Then dry the residue and look at the remaining particles under the microscope. You should find between the pebbles this: http://foraminifera.eu/querydb.php?fauna=Marshes&aktion=suche 2.) Then move on to fossil material, exposed e.g. at Calvert Cliffs. Here take at least 1kg per sample, of which just 20g may remain after washing in 0,1mm sieve. You may find this: http://www.foraminifera.eu/calvertcliffs.html With the forams usually comes other stuff. But make yourself familiar first with this easy group in order not to get lost. Some more details: http://foraminifera.eu/naturalist.html So get a 0,1mm sieve and have fun Michael 3 Foram-Mike, Owner of www.foraminifera.eu So far we show 12000+ images of foraminifera online for free Send us your images, samples and specimens to enlarge our coverage Link to comment Share on other sites More sharing options...
Herb Posted November 10, 2016 Share Posted November 10, 2016 Mike has a great site for forams "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
doushantuo Posted January 25, 2017 Share Posted January 25, 2017 And why did i forget ostracods?Surely a major oversight.Apologies for this grave error. Link to comment Share on other sites More sharing options...
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