saskatchewan corals? 1/3

[ottawafossil]

1/3

found these on shore of Lake Diefenbaker in Saskatchewan, Canada. looked to be eroded from sandy deposits with layers of harder iron-rich rusty strata. the fossils themselves are heavy, mineralized with iron and then rusted? corals? all the same type or different? i think this is in cretaceous age but not sure. see other 2 posts

Edited July 21, 2022 by ottawafossil

[Tidgy's Dad]

Seem more like ichnofossils to me, I can't see any coral structure. 

Maybe burrows of some beastie. 

[Rockwood]

I wouldn't rule out a sandy version of bog iron. It comes in pipe like form.