Bonnet hammerhead vs Green Sea Turtle

Sphyrna tiburo compared with Chelonia mydas

Taxonomic Classification

Rank	Bonnet hammerhead	Green Sea Turtle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Reptilia (Reptiles)
Order	Carcharhiniformes (Ground Sharks)	Testudines (Turtles & Tortoises)
Family	Sphyrnidae (Hammerhead Sharks)	Cheloniidae (Sea Turtles)
Genus	Sphyrna (Hammerhead Sharks)	Chelonia (Green Sea Turtles)
Species	Sphyrna tiburo	Chelonia mydas

Evolutionary Relationship

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

View Phylum: Chordata

Conservation Status

Bonnet hammerhead

EN — Endangered

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Bonnet hammerhead

Habitat

Typically found in marine environments from coastal waters to deep ocean.

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.

Bonnet hammerhead

The Bonnet hammerhead (Sphyrna tiburo) is a species in the genus Sphyrna. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.