SHARK VS SHARK

CladoselachevsEpaulette shark

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

ExtinctCladoselache fyleri×LivingHemiscyllium ocellatum
QUICK VERDICT

Cladoselache is about 1.68× longer by these reference values.

Cladoselache uses a 1.8 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
ACladoselacheabout 1.8 m / 6 ft
BEpaulette sharkreported to 1.07 m / 3.5 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.

MeasureCladoselacheEpaulette shark
Length referenceabout 1.8 m / 6 ftreported to 1.07 m / 3.5 ft
Weight referenceNot reliably reconstructedlarge-adult reference about 3 kg / 6.6 lb
Bite forceNo defensible estimate usedUnknownNo dependable maximum foundUnknown
Timeabout 370 million years agoShallow coral reefs of Australia and New Guinea
DietSmall fishesWorms, crustaceans and small fishes
03

WHAT THE DATA CAN SAY

Size is not the whole animal.

Length and weight

Cladoselache is represented by about 1.8 m / 6 ft; Epaulette shark by reported to 1.07 m / 3.5 ft. Calling it a modern-style shark hides major evolutionary distance. Mass varies strongly with size and is shown only as a reference.

Bite evidence

Cladoselache: No usable maximum-force model exists. Epaulette shark: No standardized maximum is used.

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. It can use its fins to walk across reef flats and tolerate low oxygen.

04

TRACE THE CLAIMS

Sources and limits.

CladoselacheSmithsonian National Museum of Natural HistoryEpaulette sharkAustralian MuseumHow we standardize comparisonsRead the methodology →