Hello!
After recently venturing into the wonderful world of micro fossils, I have found a few items I have no idea what they are. Included below is four pictures of one such item, found in pre-seived (to 1mm) sample of Oxford Clay (Jurassic). The item is very 3D and the fluted design on the indent on one side are particulary smooth and stunning under the microscope (which is not done justice in the pictures). The pictures show both sides, and some of them are taken on top of the date on a penny for scale. Also, any decent resources for microfossil identification? I havent been able to fi