Found these fossils in a gravel in Toronto. Help me identify it

[wintrbird89]

This is the first one:

[wintrbird89]

This is the second one: 

[Kane]

First one is too fragmentary for me to do anything but guess, and the second is not a fossil but hackle fringe.

[wintrbird89]

6 minutes ago, Kane said:

First one is too fragmentary for me to do anything but guess, and the second is not a fossil but hackle fringe.

What about this one?

[Kane]

Possibly crinoid cross section, but you really should be looking for larger rocks.

[wintrbird89]

1 minute ago, Kane said:

Possibly crinoid cross section, but you really should be looking for larger rocks.

I know... but I can’t go anywhere so I just search them in gravels :/ What do you think about this one? Is it a coral?

[Kane]

Possibly stylolite.

[Rockwood]

These last ones look like crinoid stem sections to me. I believe the texture seen in them is actually calcite crystals which obscure the lumen cast if it was indeed preserved within them.

Fragment of gastropod shell seems like a reasonable guess on the first one.

[wintrbird89]

28 minutes ago, Kane said:

Possibly stylolite.

Ok thanks!

[wintrbird89]

26 minutes ago, Rockwood said:

These last ones look like crinoid stem sections to me. I believe the texture seen in them is actually calcite crystals which obscure the lumen cast if it was indeed preserved within them.

Fragment of gastropod shell seems like a reasonable guess on the first one.

Thanks! 

[wintrbird89]

Is this a fossil?

[Kane]

No. Another example of hackle fringe.