Blacktail spurdog vs Green Sea Turtle

Squalus melanurus compared with Chelonia mydas

Key Differences

• Blacktail spurdog is Data Deficient while Green Sea Turtle is Endangered.

Taxonomic Classification

Rank	Blacktail spurdog	Green Sea Turtle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Elasmobranchii	Reptilia (réptil)
Order	Squaliformes (Squaliformes)	Testudines (Tartaruga)
Family	Squalidae	Cheloniidae (Sea Turtles)
Genus	Squalus	Chelonia (Green Sea Turtles)
Species	Squalus melanurus	Chelonia mydas

Evolutionary Relationship

Blacktail spurdog and Green Sea Turtle share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Blacktail spurdog

DD — Data Deficient

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Blacktail spurdog

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.

Blacktail spurdog

The Blacktail spurdog (Squalus melanurus) is a species in the genus Squalus. It is currently classified as Data Deficient on the IUCN Red List.

Green Sea Turtle

A tartaruga-verde (Chelonia mydas) é uma das maiores tartarugas marinhas. Seu nome vem da cor verde da cartilagem e gordura, não do casco.