Common thresher is about 1.52× longer by these reference values.
Common thresher uses a 7.6 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
Common thresher is represented by reported to 7.6 m / 24.9 ft; Squalicorax by estimated to about 5 m / 16 ft. Length comparisons can exaggerate body bulk because the tail is exceptionally long. Body length and ecology are reconstructed from incomplete fossil evidence.
Bite evidence
Common thresher: Its hunting performance cannot be reduced to jaw force. 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
Much of its length is tail, which it uses to stun prey. Serrated teeth and bite traces show a broad, opportunistic diet.
TRACE THE CLAIMS