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In 2020, Cooper and his colleagues reconstructed a 2D model of megalodon based on the dimensions of all the extant lamnid sharks and suggested that a 16 meters (52 ft) long megalodon would have had a 4.65 m (15.3 ft) long head, 1.41 m (4 ft 8 in) tall gill slits, a 1.62 m (5 ft 4 in) tall dorsal fin, 3.08 m (10 ft 1 in) long pectoral fins, and ...
The largest and widest tooth available to Perez et al., GHC 6 (13.3 cm (5.2 in) crown width), produced estimates ranging from 17.4 to 24.2 meters (57 to 79 ft) with a mean estimate of 20.3 metres (67 ft). [6] Cooper et al. (2022) digitised a megalodon vertebral column of ~150 vertebrae, IRSNB P 9893, and attempted a 3d reconstruction of megalodon.
A largest verified specimen is 12.65 m [2], however, several specimens over 18 m in length have been reported. [3])and Carcharodon megalodon (Average estimated adults size about 16 - 18 m, and a largest size of 20.3 m was extrapolated from ontogenetic trends of the great white shark by Gottfried et al. 1996. [4]) to a human Homo sapiens (180 cm).
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The largest carnivorous bird was Brontornis, an extinct flightless bird from South America which reached a weight of 350 to 400 kg (770 to 880 lb) and a height of about 2.8 m (9 ft 2 in). [176] The tallest carnivorous bird was Kelenken , which could reach 3 to 3.2 meters in height and 220 to 250 kilograms.
The Loggerhead sea turtle (Caretta caretta) reaches a maximum size of 2.1 m (7 ft) and weight of 545 kg (1,202 lb), while the Green sea turtle (Chelonia mydas) reaches a maximum weight in the range of 395 to 500 kg (871 to 1,102 lb). [46] The Flatback sea turtle (Natator depressus) may reach a weight of up to 350 kg (770 lb). [97]
It can grow up to a 5.2 m (17 ft) disk width, a total length of 6.5 m (21 ft) and a weight of at least 1,000 kg (2,200 lb). [ 48 ] [ 49 ] The largest stingray is generally accepted to be the short-tail stingray ( Dasyatis brevicaudata ), found off the southern tip of Africa and Australasia, at up to 4.3 m (14 ft) across the disk and weighing ...
The largest known land-dwelling artiodactyl was Hippopotamus gorgops with a length of 4.3 m (14 ft), a height of 2.1 m (6 ft 11 in), and a weight of 5 t (11,000 lb), [63] with its closely related European descendant, Hippopotamus antiquus, rivaling it, estimated to be 14.1 ft (4.3 m) in length and 7,700–9,300 lb (3,500–4,200 kg) in weight.