Atlantic chimaera vs Green Sea Turtle

Hydrolagus affinis compared with Chelonia mydas

Key Differences

• Atlantic chimaera is Least Concern while Green Sea Turtle is Endangered.

Taxonomic Classification

Rank	Atlantic chimaera	Green Sea Turtle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Holocephali (Holocephali)	Reptilia (Reptiles)
Order	Chimaeriformes (Chimaeriformes)	Testudines (Turtles & Tortoises)
Family	Chimaeridae	Cheloniidae (Sea Turtles)
Genus	Hydrolagus	Chelonia (Green Sea Turtles)
Species	Hydrolagus affinis	Chelonia mydas

Evolutionary Relationship

Atlantic chimaera and Green Sea Turtle share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Atlantic chimaera

LC — Least Concern

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Atlantic chimaera	Green Sea Turtle
Diet	—	Herbivore
Average Lifespan	—	80 years
Average Length	—	1.2 m
Average Weight	—	200.0 kg

Habitat & Geographic Range

Atlantic chimaera

Habitat

Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Chile and Portugal.

Green 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 8 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Australia, Brazil, Costa Rica, Indonesia, and Mexico. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Atlantic chimaera

The Atlantic chimaera (Hydrolagus affinis) is a species in the genus Hydrolagus. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Green Sea Turtle

The green sea turtle is one of the largest sea turtles. They are named for the green color of their cartilage and fat, not their shells.