In 2006, a molecular phylogenetic study showed that Tremandraceae is embedded in Elaeocarpaceae. Recognizing Tremandraceae as a separate family would make Elaeocarpaceae paraphyletic.
A 2006 molecular phylogenetic analysis revealed that Tremandraceae is part of the Elaeocarpaceae family. If Tremandraceae were classified as its own family, it would make Elaeocarpaceae a non-inclusive group.