Connecticut fossil identification

[JohnO]

Hello I recently came across what I think may be a fossil but I'm not sure what it is or if its a fossil for sure. It was found in Hamden Connecticut as part of a stone wall. That part of CT has a formation dating to Jurassic I believe. 

 

[JohnO]

A few more pictures and thanks for any info.

[JohnO]

[Rockwood]

Definitely trace fossils.

[westcoast]

Agree. Trace fossils/burrows. Meniscate backfill can be seen in the long horizontal burrow.

[JohnO]

Thanks for the information this is the first fossil I've ever found. Definitely excited to get back out there and find some more now