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The biggest odobenid and one of the biggest pinnipeds to have ever existed is Pontolis magnus, with a skull length of 60 cm (24 in) (twice as large as the skulls of modern male walruses) [159] and having a total body length of more than 4 m (13 ft). [160] [161] Only the modern male elephant seals reach similar sizes. [160]
Paraceratherium is one of the largest known land mammals that have ever existed, but its precise size is unclear because of the lack of complete specimens. [4] Its total body length was estimated as 8.7 m (28.5 ft) from front to back by Granger and Gregory in 1936, and 7.4 m (24.3 ft) by the palaeontologist Vera Gromova in 1959, [ 33 ] but the ...
Assuming it was about 20% larger, Larramendi calculated an extrapolated femur length of 1.9 metres (6.2 ft) and a speculative size estimate of 5.2 metres (17.1 ft) tall at the shoulder and 22 tonnes (49,000 lb) in body mass, which if correct would make P. namadicus possibly the largest land mammal ever, exceeding even paraceratheres in size.
The largest dinosaurs, and the largest animals to ever live on land, were the plant-eating, long-necked Sauropoda. The tallest and heaviest sauropod known from a complete skeleton is a specimen of an immature Giraffatitan discovered in Tanzania between 1907 and 1912, now mounted in the Museum für Naturkunde of Berlin.
The largest true crocodile ever existed is Euthecodon which estimated to have reached 6.4–8.6 m (21–28 ft) or even 10 m (33 ft) long. [122] [123] Gharials are long, narrow-snouted crocodilians, and are among the largest species. A 6.55 m (21.5 ft) long gharial was killed in the Ghaghara River in Faizabad in August 1920. [124]
The largest elephant ever recorded was shot in Angola in 1974. It was a male measuring 10.67 metres (35.0 ft) from trunk to tail and 4.17 metres (13.7 ft) lying on its side in a projected line from the highest point of the shoulder, to the base of the forefoot, indicating a standing shoulder height of 3.96 metres (13.0 ft).
Animals described as pachyderms, clockwise from top left: a hippopotamus, a rhinoceros, a tapir, and an elephant Pachydermata (meaning 'thick skin', from the Greek παχύς , pachys , 'thick', and δέρμα , derma , 'skin') is an obsolete order of mammals described by Gottlieb Storr , Georges Cuvier , and others, at one time recognized by ...
This is a list of the largest rodents. Rank Common name Scientific name Status Maximum body mass [kg (lb)] Image Notes 1: Giant pacarana: Josephoartigasia monesi: