SHARK VS SHARK

Frilled sharkvsHybodus

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

LivingChlamydoselachus anguineus×ExtinctHybodus hauffianus
QUICK VERDICT

Hybodus is about 1.25× longer by these reference values.

Hybodus uses a 2.5 m upper reference, compared with 2 m for Frilled 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
AFrilled sharkabout 2 m / 6.6 ft
BHybodusabout 2.5 m / 8.2 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.

MeasureFrilled sharkHybodus
Length referenceabout 2 m / 6.6 ftabout 2.5 m / 8.2 ft
Weight referencelarge-adult reference about 15 kg / 33 lbNot reliably reconstructed
Bite forceNo dependable maximum foundUnknownNo defensible estimate usedUnknown
TimeDeep continental slopesabout 250–100 million years ago
DietSquid, fishes and small sharksFishes and hard-shelled prey
03

WHAT THE DATA CAN SAY

Size is not the whole animal.

Length and weight

Frilled shark is represented by about 2 m / 6.6 ft; Hybodus by about 2.5 m / 8.2 ft. Deepwater records remain limited. The genus spans a long interval and multiple species; this is a comparison reference.

Bite evidence

Frilled shark: No standardized maximum is available. Hybodus: Tooth form suggests diet, not an exact 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

Its body plan looks ancient, but living frilled sharks are modern species—not unchanged fossils. It was a shark-line relative, not a member of a living shark order.

04

TRACE THE CLAIMS

Sources and limits.

Frilled sharkFlorida MuseumHybodusNatural History MuseumHow we standardize comparisonsRead the methodology →