Described as acritarch, but considered an algal cyst (?Chlorophyceae) by Agić et al., 2015. [details]
Placed in "Group Chloroplastida Adl et al., 2005, phylum and class uncertain" by describers; allocated to ... [details]
Possibly an early dinoflagellate cyst according to Meng et al., 2005, quoted in Taylor et al., 2009, however ... [details]