Subsequent prospecting in younger rocks, 75–73 million years old, has yielded further sites. Several hundred bones have been removed from these localities, including one articulated hadrosaur specimen surrounded by scores of shed juvenile tyrannosaurid teeth. Teeth of the sickle–clawed dromaeosaurs and troodontids as well as hadrosaur jaws, fish scales, and champsosaur vertebrae have also been recovered. At the hadrosaur excavation site there is evidence in the form of microtektites that may represent a significant extraterrestrial event. In 2013 excavation revealed the presence of multiple dinosaurs, indicating a dinosaur bonebed, B.C.’s first.
In these Cretaceous rocks is the final fossil strength of the Tumbler Ridge area: abundant plant life and invertebrate life. In the latter category are crustaceans, oysters, inoceramids and starfish impressions. A great transformation took place during the early part of the Late Cretaceous Period (Cenomanian), from a landscape initially dominated by redwoods, ferns, cycads, seed ferns, horsetails and ginkgo, to one dominated by angiosperms (flowering plants). These are all represented in local rocks.