| Portalia | |
|---|---|
| |
| A restoration of Portalia mira (top) compared with Redoubtia polypodia (bottom) | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | incertae sedis |
| Genus: | †Portalia |
| Species: | †P. mira |
| Binomial name | |
| †Portalia mira | |
Portalia is a fossil from the Burgess Shale that was originally described by Charles Walcott as a holothurian echinoderm. A later interpretation by Madsen posits Portalia mira as a sponge.