The cyst forms of a particular group of ciliates, the tintinnids have been suggested to be affiliated to Chitinozoans.

I hated those; I saw one once, not in object-simulation but in cyst form, like you depict.

The cyst form also differs from the trophozoite form because it is non-motile and does not undergo reproduction.

Fecal-oral transmission is the most accepted pathway, and recent studies have shown that transmission involves only the cyst form of the parasite.

The supposed life cycle begins with ingestion of the cyst form.

Now in its mature cyst form, cysts are released into the environment where they can go on to infect a new host.

During daytime when the desert environment is extremely hot and dry, Ramlibacter tataouinensis exist in cyst form.

In its cyst form, Ramlibacter tataouinensis is well protected against desiccation.