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Megalodon size estimates vary depending on the method used, with maximum total length estimates ranging from 14.2–20.3 meters (47–67 ft). [ 35 ] [ 40 ] [ 25 ] A 2015 study estimated the modal total body length at 10.5 meters (34 ft), calculated from 544 megalodon teeth, found throughout geological time and geography, including juveniles 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). Cooper et al. (2022) digitised a megalodon vertebral column of ~150 vertebrae, IRSNB P 9893, and attempted a 3d reconstruction of O ...
)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. ) to a human Homo sapiens (180 cm). C. megalodon is only known from teeth and vertebrae, the silhouette shown here is speculative.
These estimates varied depending on the girth of its rib cage and the amount of soft tissue modelled around the skeleton, with an overall average weight of 5.9 metric tons (6.5 short tons), and a lowermost estimate with minimal body fat and other tissues at 4.9 metric tons (5.4 short tons) and a maximum of 7 metric tons (7.7 short tons) at its ...
In the theropod lineage leading to birds, body size shrank continuously over a period of 50 million years, from an average of 163 kilograms (359 lb) down to 0.8 kg (1.8 lb). This was the only dinosaur lineage to get continuously smaller over such an extended time period, and their skeletons developed adaptations at about four times the average ...
Starting from just a few kg before the event, maximum size had reached ~50 kilograms (110 lb) a few million years later, and ~750 kilograms (1,650 lb) by the end of the Paleocene. This trend of increasing body mass appears to level off about 40 Ma ago (in the late Eocene ), suggesting that physiological or ecological constraints had been ...
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In 2002, Stephen Wroe considerably downsized megalania, suggesting a maximum total length of 4.5 m (15 ft) and a weight of 331 kg (730 lb) with average total lengths of 3.45 m (11.3 ft) and 97–158 kg (214–348 lb), [12] decrying the earlier maximum length estimate of 7 m (23 ft) as exaggerations based on flawed methods. In 2009, however ...