Activity Jules Schroeder posted a new specimen in the group What is it? from the myFOSSIL app 1 month, 1 week ago 1 month, 1 week ago 1 month, 1 week ago Jules Schroeder has contributed specimen mFeM 85957 to myFOSSIL! Smudge Smith replied 1 month, 1 week ago rock I think Corinne replied 1 month ago possible stromatolite, but really depends on where you found it. If you know the location it was collected use macrostrat.org to find the formation, and see if stromatolite makes sense. Jules Schroeder replied 1 month ago Thanks so much!!