Leatherback Sea Turtle vs Mark's Cyanea

Dermochelys coriacea compared with Cyanea marksii

Key Differences

• Leatherback Sea Turtle is Vulnerable while Mark's Cyanea is Critically Endangered.

Taxonomic Classification

Rank	Leatherback Sea Turtle	Mark's Cyanea
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Cnidaria (Cnidarians)
Class	Reptilia (Reptiles)	Scyphozoa (Scyphozoa)
Order	Testudines (Turtles & Tortoises)	Semaeostomeae (Semaeostomeae)
Family	Cheloniidae (Sea Turtles)	Cyaneidae
Genus	Chelonia (Green Sea Turtles)	Cyanea
Species	Dermochelys coriacea	Cyanea marksii

Evolutionary Relationship

Leatherback Sea Turtle and Mark's Cyanea share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Leatherback Sea Turtle

VU — Vulnerable

Population: ~35.0K

Trend: Decreasing ↓

Mark's Cyanea

CR — Critically Endangered

Physical Characteristics

Attribute	Leatherback Sea Turtle	Mark's Cyanea
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.

Mark's Cyanea

Leatherback Sea Turtle

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