Excited to find this fossil-rich rock, which seems to have graptolites (my first). Any thoughts on ID?

[Rogue Embryo]

It's been a while since I've posted here, but recently I found a small rock that's covered by fossils that are less familiar to me than the crinoids and cephalopods that I often find near Toronto. I think some are graptolites, but would appreciate any help with ID. Thanks very much!

 

 

[jpc]

I think these are bryozoans, but then these are not my forte.

 

[Tidgy's Dad]

I agree; a nice selection of bryozoa. 

[Rogue Embryo]

Thanks, guys! Darn, I thought for sure at least some were graptolites, for example, numbers 2,4, 5, and 8. Some seem to have jagged edges.

[Kane]

The graptolites will more commonly appear in the dark, deepwater shales of the Whitby/Collingwood.

[Rogue Embryo]

Thank you - this will help me to identify bryozoans better!

Edited February 6, 2022 by Rogue Embryo

[Rogue Embryo]

However, this fossiliferous rock was found in Lake Ontario, and from what I understand, these rocks can originate from a wider region.

 

I'm wondering whether the fossil below (on the left side) could be phyllograptus.

 

 

Similarly, could the fossil below (top centre) also be phyllograptus?

 

 

 

[FossilDAWG]

Not Phyllograptus.  They are cross sections through bifoliate bryozoans.

 

Don

[Rogue Embryo]

Thank you, now I have something new to research and ponder! :-)

 

Camille

[Rogue Embryo]

Wow, just did a bit of reading about bryozoans -- I thought they just resembled twigs and didn't realize that their morphology was so diverse!