Bluntnose sixgill is about 1.92× longer by these reference values.
Bluntnose sixgill uses a 4.8 m upper reference, compared with 2.5 m for Hybodus. 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
Hybodus is represented by about 2.5 m / 8.2 ft; Bluntnose sixgill by reported to 4.8 m / 15.8 ft. The genus spans a long interval and multiple species; this is a comparison reference. Deepwater sampling is difficult, so upper records are sparse.
Bite evidence
Hybodus: Tooth form suggests diet, not an exact force. Bluntnose sixgill: No standardized maximum is available.
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 a shark-line relative, not a member of a living shark order. Its six gill slits mark an ancient branch of shark diversity.
TRACE THE CLAIMS