Phylum Porifera (sponge) M. Odovician
Bobcaygeon Formation Kirkfield, Ontario. Cananda 4.5 cm long
This is another from an old collection as found. Wrapped with a number tag to match a hand writ-in entry. The sponges I have shows some formation. I will put it in the ultrasonic cleaner. What do you think, do the come smooth?
Bob