Polymastiida
| Polymastiida | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Porifera |
| Class: | Demospongiae |
| Subclass: | Heteroscleromorpha |
| Order: | Polymastiida Morrow & Cárdenas, 2015 |
| Families | |
| |
Polymastiida is an order of sea sponges.
Taxonomy and history
The order Polymastiida was erected in 2015 to accommodate the demosponge family Polymastiidae, previously placed in the now-defunct paraphyletic order Hadromeridam, and was then considered monotypic. A second family in the order, Spinulariidae, was erected in 2026 to accommodate the deep sea genera Spinularia, Acanthopolymastia, Pseudotrachya, and Tentorium.
Families
The order Polymastiida includes the following families:
- Polymastiidae Gray, 1867
- Spinulariidae Santín & Brandt, 2026