Marsupiomonadales is an order of

green algae The green algae (singular: green alga) are a group consisting of the Prasinodermophyta and its unnamed sister which contains the Chlorophyta and Charophyta/Streptophyta. The land plants (Embryophytes) have emerged deep in the Charophyte alga as ...

in the class Pedinophyceae.

References

Chlorophyta orders Pedinophyceae {{Green algae-stub