SHARK VS SHARK

Epaulette sharkvsSqualicorax

Length, weight and bite evidence—plus context from a human, city bus and blue whale. Every number below carries its uncertainty with it.

LivingHemiscyllium ocellatum×ExtinctSqualicorax pristodontus
QUICK VERDICT

Squalicorax is about 4.7× longer by these reference values.

Squalicorax uses a 5 m upper reference, compared with 1.07 m for Epaulette shark. A clean mass ratio is not shown because at least one weight is not reliably reconstructed.

01

ON THE SAME SCALE

Human. Bus. Whale.
Pick your reference.

RELATIVE LENGTH · 0–24 METERS
AEpaulette sharkreported to 1.07 m / 3.5 ft
BSqualicoraxestimated to about 5 m / 16 ft
REFAdult human1.8 m · about 80 kg

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.

02

THE NUMBERS

Side by side.

MeasureEpaulette sharkSqualicorax
Length referencereported to 1.07 m / 3.5 ftestimated to about 5 m / 16 ft
Weight referencelarge-adult reference about 3 kg / 6.6 lbNot reliably reconstructed
Bite forceNo dependable maximum foundUnknownNo defensible estimate usedUnknown
TimeShallow coral reefs of Australia and New Guineaabout 85–66 million years ago
DietWorms, crustaceans and small fishesFishes, marine reptiles and carrion
03

WHAT THE DATA CAN SAY

Size is not the whole animal.

Length and weight

Epaulette shark is represented by reported to 1.07 m / 3.5 ft; Squalicorax by estimated to about 5 m / 16 ft. Mass varies strongly with size and is shown only as a reference. Body length and ecology are reconstructed from incomplete fossil evidence.

Bite evidence

Epaulette shark: No standardized maximum is used. 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

It can use its fins to walk across reef flats and tolerate low oxygen. Serrated teeth and bite traces show a broad, opportunistic diet.

04

TRACE THE CLAIMS

Sources and limits.

Epaulette sharkAustralian MuseumSqualicoraxPaleobiology DatabaseHow we standardize comparisonsRead the methodology →