Megalodon is about 3.1× longer by these reference values.
Megalodon uses a 15.3 m upper reference, compared with 5 m for Squalicorax. A clean mass ratio is not shown because at least one weight is not reliably reconstructed.
ON THE SAME SCALE
Human. Bus. Whale.
Pick your reference.
Length bars use upper comparison values and do not show body depth, tail proportion or typical adult size. A long thresher tail, for example, does not equal whale-shark body mass.
THE NUMBERS
Side by side.
WHAT THE DATA CAN SAY
Size is not the whole animal.
Length and weight
Megalodon is represented by evidence-based upper estimate 14.1–15.3 m / 46–50 ft; Squalicorax by estimated to about 5 m / 16 ft. No complete skeleton exists; 15.3 m is an evidence-based maximum from museum specimens, not a tape measurement. Body length and ecology are reconstructed from incomplete fossil evidence.
Bite evidence
Megalodon: Finite-element scaling produced a range, not a directly measured bite. Squalicorax: Bite traces show feeding, not maximum force.
Living versus extinct
At least one animal is known from fossils. Fossil length, weight and bite estimates depend on which living analogues and scaling equations researchers choose.
Ecology changes the matchup
Nearly every whole-body number is reconstructed from teeth and comparisons with living sharks. Serrated teeth and bite traces show a broad, opportunistic diet.
TRACE THE CLAIMS