Cryptofilida (from
Latin crypto 'hidden', and fila 'threads') is an order of small
heterotrophic protists in the phylum
Cercozoa. They are
filoseamoebae that lack
cilia and
gliding, and are instead characterized by movement through branching or unbranched granular
filopodia that are appressed to the substrate during their feeding.[1][2]
Cryptofilida is a clade inside
Granofilosea, and is phylogenetically related to
Limnofilida, a group with similar amoeboid protists. However, the exact relationships between the granofilosean clades is still unresolved. Two outcomes are shown here from the 2009 analysis that identified the group for the first time:[1]
^Harkes P, Suleiman AK, van den Elsen SJ, Haan JJ, Holterman M, Kuramae EE, Helder J (15 February 2019). "Mapping of long-term impact of conventional and organic soil management on resident and active fractions of rhizosphere communities of barley". bioRxiv (546192).
doi:
10.1101/546192.
S2CID92116125.