Imagine Dinosaurs's video: Reptiles of the Cenozoic

Mesozoic is not the only era for large reptiles Honorable mention: Purusaurus Boverisuchus is an extinct genus of planocraniid crocodylian known from the middle Eocene (Lutetian stage) of Germany and possibly North America. It grew to approximately three metres (10 ft) in length. Euthecodon is an extinct genus of long-snouted crocodyline crocodilians. It was common throughout much of Africa during the Neogene, with fossils being especially common in Kenya. It existed from the Early Miocene to the Early Pleistocene. Gigantophis garstini was a prehistoric snake which may have measured more than 10 meters (33 feet), larger than any living species of snake. It once took the mantle of largest snake before Titanoboa, which was recently discovered in Colombia. Gigantophis lived approximately 40 million years ago in the southern Sahara where Egypt and Algeria are now situated. Gryposuchus is an extinct genus of gavialoid crocodilian. It is the type genus of the subfamily Gryposuchinae. Fossils have been found from Argentina, Colombia, Venezuela, Brazil and the Peruvian Amazon. The genus existed during the early and middle Miocene epoch. One recently described species, G. croizati, grew to an estimated length of 11.4 metres (37 ft) Megalania was a large monitor lizard that lived in Australia during the Pleistocene Epoch, about 2.5 million years ago. The massive reptile was about 23 feet (7 meters) long, the size of a Saltwater Crocodile, the largest reptile alive today, making it the largest lizard that ever lived. It also had a venomous bite just like its relative, the Komodo Dragon. Megalochelys atlas, formerly known as Colossochelys atlas, Geochelone atlas, or Testudo atlas and initially described in 1837 (later withdrawn) as Megalochelys sivalensis, is an extinct species of cryptodire turtle from the Miocene through the Pleistocene periods. During the dry glacial periods it ranged from western India and Pakistan (possibly even as far west as southern and eastern Europe) to as far east as Sulawesi and Timor in Indonesia. It was the largest testudine known. Meiolania ("small roamer") is an extinct genus of cryptodire turtle from the Oligocene to Holocene, with the last relict populations at New Caledonia which survived until 2,000 years ago. Mourasuchus is an extinct genus of giant crocodilian from the Miocene of South America. The skull has been described as duck like, being broad, flat and very elongate, closely resembling what is seen in Stomatosuchus, an unrelated crocodilian that may also have had a large gular sac similar to those of pelicans or baleen whales. Pristichampsus (name meaning: "saw crocodile") is an extinct genus of pristichampsid crocodylian from Eurasia and possibly North America. Because the type species, P. rollianti, was based on insufficient material, the taxonomic status of the genus is in doubt, and other species have been referred to other genera, primarily Boverisuchus. Quinkana fortirostrum is an ancient mekosuchine crocodyliform of Late Oligocene to Pleistocene Australia that lived 25 million to 40 000 years ago. Sebecus icaeorhinus was a large crocodylomorph from Eocene, South America. Titanoboa, meaning "Titanic Boa," was a very large genus of snake that lived approximately 60–58 million years ago, during the Paleocene epoch, a 5-million-year period immediately following the Cretaceous extinction event. The only known species is Titanoboa cerrejonensis, the largest snake ever discovered, which supplanted the previous record holder, Gigantophis.