
Freshwater sponge , phylum Porifera, possibly
Spongilla. Length less than 6 inches or 15 cm.
Attached to a rock in a shallow river in Minnesota, the branches are pointing downstream.
While I am not aware of any toy replica of a freshwater sponge,
Vauxia, a marine sponge figure, dates from 520 million years ago.
Our friends at the
Dinosaur Toy Forum would welcome us to visit the site.
Vauxia (Safari – Cambrian Life Toob). Height 2 3/8 inches or 6 cm.