Petaloptyon danei is a goblet-shaped hexactinellid sponge known from rare fragments from the Middle Cambrian Burgess Shale. A few specimens of Petaloptyon are known from the Greater Phyllopod bed, where they comprise under 0.01% of the community.[1]
| Petaloptyon Temporal range: | |
|---|---|
 | |
| Artist's reconstruction | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Porifera |
| Informal group: | †"Heteractinida" |
| Family: | †Eiffeliidae |
| Genus: | †Petaloptyon Raymond, 1931 |
| Species: | †P. danei |
| Binomial name | |
| †Petaloptyon danei Raymond, 1931 | |
| Synonyms | |
Canistrumella alternata Rigby, 1986 | |
The fragments show the living animal had a stalk, and had panels with a lattice pattern.