The Cretaceous is yet to end.
 At the peak of the Cretaceous transgression, one-third of Earth's present land area was submerged
 The other Cretaceous groups that did not survive into the Cenozoic Erathe ichthyosaurs, last remaining temnospondyls (Koolasuchus), and nonmammalian cynodonts (Tritylodontidae)  were already extinct millions of years before the event occurred

