Leatherback Sea Turtle vs Roughskin Dogfish

Dermochelys coriacea compared with Cirrhigaleus asper

Key Differences

• Leatherback Sea Turtle is Vulnerable while Roughskin Dogfish is Data Deficient.

Taxonomic Classification

Rank	Leatherback Sea Turtle	Roughskin Dogfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Reptilia (Reptiles)	Elasmobranchii
Order	Testudines (Turtles & Tortoises)	Squaliformes (Squaliformes)
Family	Cheloniidae (Sea Turtles)	Squalidae
Genus	Chelonia (Green Sea Turtles)	Cirrhigaleus
Species	Dermochelys coriacea	Cirrhigaleus asper

Evolutionary Relationship

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

Conservation Status

Leatherback Sea Turtle

VU — Vulnerable

Population: ~35.0K

Trend: Decreasing ↓

Roughskin Dogfish

DD — Data Deficient

Physical Characteristics

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

Habitat & Geographic Range

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.

Roughskin Dogfish

Leatherback Sea Turtle

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