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Freshwater sponge

Started by stemturtle, August 18, 2014, 04:08:56 PM

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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.


Ooh, very nice! Whenever I come across freshwater sponges, they are utterly filthy, so its nice to see a clean one.


Thanks, Newt. The symbiotic green algae require sunlight.  Local ecologists consider freshwater sponges indicators of clean water.