This is a photo of a mineral specimen of calcareous foraminifera. The structure features layer upon layer of fine, granular white crystals, with numerous small pits and grooves on the surface that clearly show the characteristics of microfossils. This can
The photo material of 'Calcareous Coralline Sponges' is free material that can be used for both commercial and non-commercial purposes without charge. No membership registration is required, and there are no quantity limits or paid sales. Please read the "Terms of Use", and only if you agree, you may use the S/M/L and cropped images.
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