Common thresher is about 4.2× longer by these reference values.
Common thresher uses a 7.6 m upper reference, compared with 1.8 m for Cladoselache. 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
Cladoselache is represented by about 1.8 m / 6 ft; Common thresher by reported to 7.6 m / 24.9 ft. Calling it a modern-style shark hides major evolutionary distance. Length comparisons can exaggerate body bulk because the tail is exceptionally long.
Bite evidence
Cladoselache: No usable maximum-force model exists. Common thresher: Its hunting performance cannot be reduced to jaw 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
It was an early shark-like chondrichthyan with a streamlined body. Much of its length is tail, which it uses to stun prey.
TRACE THE CLAIMS