Pteranodon
Pteranodon (; from Greek πτερόν ( pteron, "wing") and ἀνόδων (anodon, "toothless") is a genus of pterosaur that included some of the largest known flying reptiles, with wingspans over 8 meters (26 feet). They lived during the late Cretaceous geological period of North America in present-day Kansas, Alabama, Nebraska, Wyoming, and South Dakota. More fossil specimens of "Pteranodon" have been found than any other pterosaur, with about 1,200 specimens known to science, many of them well preserved with nearly complete skulls and articulated skeletons. It was an important part of the animal community in the Western Interior Seaway.
Protemnodon
Protemnodon is a genus of megafaunal macropods that existed in Australia, Tasmania, and Papua New Guinea in the Pliocene and Pleistocene. Based on fossil evidence, "Protemnodon" is thought to have been physically similar to wallabies, but far larger. "Protemnodon hopei" was the smallest in the genus, weighing about 45 kg; the largest species, "Protemnodon roechus", weighing around 170 kg. Recent analysis of mtDNA extracted from fossils indicates that "Protemnodon" was closely related to "Macropus".