Author Topic: Freshwater sponge  (Read 1290 times)

stemturtle

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Freshwater sponge
« on: August 18, 2014, 04:08:56 PM »

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.

« Last Edit: August 18, 2014, 04:55:37 PM by stemturtle »



Newt

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Re: Freshwater sponge
« Reply #1 on: August 18, 2014, 09:44:52 PM »
Ooh, very nice! Whenever I come across freshwater sponges, they are utterly filthy, so its nice to see a clean one.

stemturtle

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Re: Freshwater sponge
« Reply #2 on: August 19, 2014, 01:13:05 PM »
Thanks, Newt. The symbiotic green algae require sunlight.  Local ecologists consider freshwater sponges indicators of clean water.

widukind

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Re: Freshwater sponge
« Reply #3 on: August 19, 2014, 04:34:36 PM »
Nice!!!! :)