Did these guys put a hitch in the dinosaurian soft tissue fossils or just find out that ammonoids were red blooded? Dinosaurian Soft Tissues Interpreted as Bacterial Biofilms "Discovery of these spheres in an ammonite suture indicated they had no relationship to iron derived from blood. These spheres were identified as framboids which are seen world wide in black smokers, algal mats and are commonly found in sediments." All cephalopod blood is copper based, right???