Heaviest reptile

The heaviest species of reptile is the saltwater (aka estuarine) crocodile (Crocodylus porosus), which is found throughout the tropical regions of Asia, including India and Indonesia, and the Pacific, including New Guinea and northern Australia. Adult males weigh up to 1,200 kg (2,645 lb), but average about 408–520 kg (900–1,150 lb); females are much smaller.

Some researchers have claimed that the green anaconda (Eunectes murinus) is larger than the saltwater crocodile. Even though it is the world's heaviest species of snake, and can exceed the saltie in length, it is still far lighter than the saltwater croc. The heaviest green anaconda specimen on record was an 8.45-m-long (27-ft 9-in) female shot in Brazil c. 1960, with a girth of 111 cm (44 in), and an estimated weight of 227 kg (500 lb). Their more typical proportions are an adult length of 5.5–6.1 m (18–20 ft) with a weight range of between 30 and 70 kg (65–155 lb).