It is apparent that chitinozoa showed preference for certain ecological regions. Most chitinozoa were planktic, except for a few species with thicker vesicle walls, which makes it probable that they were benthic. This also indicates the majority inhabited waters if greater depth, such as Bathyal and sometimes Abyssal levels.
They are preserved in most type of marine sedimentary rocks in concentrations of up to several hundred tests per gram, however, they are less abundant than their age-equivalent palynomorphs, such as acritarchs. Many remain identifiable in strongly metamorphosed rock.