Splitting from the budding microdendrons, the protodendron has doubled in size. This species still forms large clusters and releases its offspring in a way similar to how other flora release spores. The new individuals float about along water currents for 1–2 weeks, after which they sink to the bottom and attach to a hard surface, hopefully close to surface so that they may photosynthesize. They rapidly approach adult size and can then reproduce soon after.
Living Relatives (click to show/hide)
None found. Note that this does not necessarily mean it has no living relatives at all, but that, assuming all taxonomy is filled in, its entire phylum is extinct; any relatives it does have likely do not resemble it.