Occultammina
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Occultammina is a genus of xenophyophorean foraminifera known from the Atlantic and Pacific oceans. It is notable for being the first known infaunal xenophyophore as well as for being a possible ident
The enigmatic fossil Paleodictyon has been likened to Occultammina
Radiolaria
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The Radiolaria, also called Radiozoa and informally called radiolarians, are unicellular eukaryotes of diameter 0.1–0.2 mm that produce intricate mineral skeletons, typically with a central capsule di
Occultammina
…of two layers. The outermost is 15-30 μm in thickness and composed primarily from clay; the inner layer is 50-90 μm thick and composed of silt and radiolarian tests. The interior of the test lining has between one and four ridges separating the stercomares, or waste masses. Individual Occultammina tubes are…
Radiolaria
Anthocyrtium hispidum Haeckel
Like diatoms, radiolarians come in many shapes
Also like diatoms, radiolarian shells are usually made of silicate