Sponges were some of the very first invertebrates, known at least since the Cambrian period 550 MYA, but reaching their peak in the Mesozoic (though Walking with Dinosaurs ep. 3 does not show this).
| Identifier (URI) | Rank |
|---|---|
| dbkwik:resource/mS6O-bOckY1nfoPs4HTnxw== | 5.88129e-14 |
| dbr:Sponge | 5.88129e-14 |
![[RDF Data]](/fct/images/sw-rdf-blue.png)
