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The oldest undisputed lizards date to the Middle Jurassic, from remains found In Europe, Asia and North Africa. [53] Lizard morphological and ecological diversity substantially increased over the course of the Cretaceous. [54] In the Palaeogene, lizard body sizes in North America peaked during the middle of the period. [55]
Saniwa is an extinct genus of varanid lizard that lived during the Eocene epoch. It is known from well-preserved fossils found in the Bridger and Green River Formations of Wyoming, United States. The type species S. ensidens was described in 1870 as the first fossil lizard known from North America.
The Helodermatidae or beaded lizards are a small family of lizards endemic to North America today, mainly found in the Isthmus of Tehuantepec in Oaxaca, the central lowlands of Chiapas, on the border of Guatemala, and in the Nentón River Valley, [1] though they were formerly more widespread in the ancient past.
This is a checklist of American reptiles found in Northern America, based primarily on publications by the Society for the Study of Amphibians and Reptiles (SSAR). [1] [2] [3] It includes all species of Bermuda, Canada, Greenland, Saint Pierre and Miquelon, and the United States including recently introduced species such as chameleons, the Nile monitor, and the Burmese python.
Palaeosaniwa is among the largest terrestrial lizards known from the Mesozoic era, with an estimated body mass of 6 kg (13 lb) and a snout–vent length about 82 cm (32 in). [3] Its total body length would have been around 1–2 m (3 ft 3 in – 6 ft 7 in), smaller than the adult Komodo dragon and other Mesozoic lizards of East Asia ...
Download as PDF; Printable version; ... Lizards of Central America (36 P) Pages in category "Lizards of North America"
The Milton Lizard, also known as the Creature of Canip Creek, is a cryptid of the giant lizard variety. According to Coffey, the creature was first spotted in a Milton salvage yard, over in ...
Obamadon is an extinct genus of polyglyphanodontian lizards from the Late Cretaceous of North America. Fossils have been found in the Hell Creek Formation of Montana and the Lance Formation of Wyoming. Researchers describe it as being distinguished by its "tall, slender teeth with large central cusps separated from small accessory cusps by ...