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Hylonomus (/ h aɪ ˈ l ɒ n əm ə s /; hylo-"forest" + nomos "dweller") [2] is an extinct genus of reptile that lived during the Bashkirian stage of the Late Carboniferous.It is the earliest known crown group amniote and the oldest known unquestionable reptile, with the only known species being Hylonomus lyelli.
Nyasasaurus (meaning "Lake Nyasa lizard") is an extinct genus of avemetatarsalian archosaur from the putatively Middle Triassic Manda Formation of Tanzania that may be the earliest known dinosaur. The type species Nyasasaurus parringtoni was first described in 1956 in the doctoral thesis of English paleontologist Alan J. Charig , but it was not ...
Most lizard species and some snake species are insectivores. The remaining snake species, tuataras, and amphisbaenians, are carnivores. While some snake species are generalist, others eat a narrow range of prey - for example, Salvadora only eat lizards. [33] The remaining lizards are omnivores and can consume plants or insects. The broad ...
The oldest undisputed lizards date to the Middle Jurassic, from remains found In Europe, Asia and North Africa. [54] Lizard morphological and ecological diversity substantially increased over the course of the Cretaceous. [55] In the Palaeogene, lizard body sizes in North America peaked during the middle of the period. [56]
The herbivorous Alierasaurus was the largest caseid and the largest amniote to have lived at the time, with an estimated length around 6–7 m (20–23 ft). [3] Cotylorhynchus hancocki is also large, with an estimated length and weight of at least 6 m (20 ft) [4] and more than 500 kg (1,100 lb). [5]
Scientists have identified the oldest living species on Earth is a deep sea organism that hasn't evolved in more than two billion years. And, it may prove Charles Darwin's Theory of Evolution ...
Despite being found in marine deposits, the fossil of Megachirella shows no adaptation to aquatic life. On the contrary, characteristics like the strong front legs, the shape of the claws, the well-ossified carpus and the hollow ribs lead one to think that this animal was well adapted to a terrestrial lifestyle. The specimen was probably ...
The Lapitiguana is the largest iguana fossils. The extant members of genus Brachylophus are iguanas small and medium-sized, growing a length of 60–75 cm (24–30 in). ). Although, in the past there was a much larger member of this family – Brachylophus gibbonsi, reached in length of 1.2 m (3.9 ft), [citation needed] and thus, was 1.8 times longer than its modern re