Halberd shark vs Leatherback Sea Turtle

Pristiophorus japonicus compared with Dermochelys coriacea

Key Differences

• Halberd shark is Least Concern while Leatherback Sea Turtle is Vulnerable.

Taxonomic Classification

Rank	Halberd shark	Leatherback Sea Turtle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Reptilia (Reptiles)
Order	Pristiophoriformes (Pristiophoriformes)	Testudines (Turtles & Tortoises)
Family	Pristiophoridae	Cheloniidae (Sea Turtles)
Genus	Pristiophorus	Chelonia (Green Sea Turtles)
Species	Pristiophorus japonicus	Dermochelys coriacea

Evolutionary Relationship

Halberd shark and Leatherback Sea Turtle share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Halberd shark

LC — Least Concern

Leatherback Sea Turtle

VU — Vulnerable

Population: ~35.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Halberd shark	Leatherback Sea Turtle
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	2.0 m
Average Weight	—	500.0 kg

Habitat & Geographic Range

Halberd shark

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

Leatherback Sea Turtle

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 5 distinct biome types spanning the Australasia and Indomalayan and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Costa Rica, Indonesia, Malaysia, and Trinidad and Tobago. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Leatherback Sea Turtle

The leatherback is the largest living turtle and the fourth-heaviest reptile. Unlike other turtles, it has a soft, leathery shell.