why are there no dinosaur fossils dated later than 64 million years ago

Phylogenetic approaches in comparative physiology. When Were dinosaurs found? Southern Australia lay within the Antarctic Circle. Metrics details. However, in the interest of brevity and simplicity, the full diversity of non-mammalian synapsids is rarely addressed. This increase is associated with the radiation of the Cretaceous marine birds: the Hesperornithiformes and Ichthyornithiformes. Cracraft J Phylogenetic relationships and monophyly of loons, grebes and hesperornithiform birds, with comments on the early history of birds.

WHY ARE THERE NO DINOSAUR FOSSILS DATED LATER THAN 64 MILLION YEARS AGO / janiceclark.net

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