Uniplacotomia

Uniplacotomia is a class of placozoans encompassing the vast majority of the phylum, with the exception of Polyplacotoma. It was established in 2022.^[1] It comprises the orders Trichoplacea, Cladhexea and Hoilungea. Their morphology is consistent across the class, resembling the typical Trichoplax as mostly rounded, flat organisms rather than the polytomous, branching structure exhibited by Polyplacotomia.

Uniplacotomia
Trichoplax adhaerens
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Placozoa
Class:	Uniplacotomia Tessler et al., 2022
Type species
Trichoplax adhaerens
Orders[1]
Order Trichoplacea Family Trichoplacidae Trichoplax Order Cladhexea Undescribed species Order Hoilungea Family Cladtertiidae Cladtertia Family Hoilungidae Hoilungia

Despite a uniform exterior morphology, Uniplacotomia exhibits an important degree of diversity in molecular morphology, with at least two dozen species estimated to exist.^[1][2]