Original sentence: Many scientists dismiss the "Paleocene dinosaurs" as re-worked, i.Remains of archosaurs and icthyosaurs have been found in sediments from as late as the Miocene
Edited sentence: All of the remains are fragments, which could have been re-worked.In the case of the "Paleocene dinosaurs":.Most scientists now dismiss the "Paleocene dinosaurs" as re-worked, i.Remains of archosaurs and icthyosaurs have been found in sediments from as late as the Miocene ().The vast majority of the dinosaur remains in Paleocene rocks are teeth, which are the most susceptible of all fossils to re-working because they are small and durable enough to survive without visible effects stresses which would destroy other bones.There are no complete dinosaurs and no collections of bone which could have come from one individual