
Dinocysts or dinoflagellate cysts are typically 15 to 100 µm in diameter and produced by around 15-20% of living dinoflagellates as a dormant, zygotic stage of their lifecycle, which can accumulate in the sediments as microfossils. Organic-walled dinocysts are often resistant and made out of dinosporin. There are also calcareous dinoflagellate cy...
Found on
http://en.wikipedia.org/wiki/Dinocyst

A resting stage or reproductive stage in the life cycle of a dinoflagellate.
Found on
https://www.encyclo.co.uk/local/21202
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