SHARK VS SHARK

CretoxyrhinavsShortfin mako

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

ExtinctCretoxyrhina mantelli×LivingIsurus oxyrinchus
QUICK VERDICT

Cretoxyrhina is about 1.57× longer by these reference values.

Cretoxyrhina uses a 7 m upper reference, compared with 4.45 m for Shortfin mako. 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
ACretoxyrhinaestimated to about 7 m / 23 ft
BShortfin makoreported to about 4.45 m / 14.6 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.

MeasureCretoxyrhinaShortfin mako
Length referenceestimated to about 7 m / 23 ftreported to about 4.45 m / 14.6 ft
Weight referenceNot reliably reconstructedrecorded to about 570 kg / 1,257 lb
Bite forceNo defensible estimate usedUnknownNo dependable maximum foundUnknown
Timeabout 107–73 million years agoOpen tropical and temperate oceans
DietLarge fishes and marine reptilesFast fishes, squid and other sharks
03

WHAT THE DATA CAN SAY

Size is not the whole animal.

Length and weight

Cretoxyrhina is represented by estimated to about 7 m / 23 ft; Shortfin mako by reported to about 4.45 m / 14.6 ft. Length is reconstructed from fossils; mass is too model-dependent for a single figure here. Record length and mass do not necessarily describe the same individual.

Bite evidence

Cretoxyrhina: TuffShark does not scale a bite value without a published species-specific model. Shortfin mako: No directly comparable maximum bite-force estimate 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

Teeth and rare skeletal material point to a large, fast lamniform predator. Speed is its signature; the biggest animals are unusual and hard to verify.

04

TRACE THE CLAIMS

Sources and limits.

CretoxyrhinaSmithsonian National Museum of Natural HistoryShortfin makoFlorida MuseumHow we standardize comparisonsRead the methodology →