Dwarf round ray vs Green Sea Turtle

Urotrygon nana compared with Chelonia mydas

Key Differences

• Dwarf round ray is Near Threatened while Green Sea Turtle is Endangered.

Taxonomic Classification

Rank	Dwarf round ray	Green Sea Turtle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Reptilia (Reptiles)
Order	Myliobatiformes (Myliobatiformes)	Testudines (Turtles & Tortoises)
Family	Urotrygonidae	Cheloniidae (Sea Turtles)
Genus	Urotrygon	Chelonia (Green Sea Turtles)
Species	Urotrygon nana	Chelonia mydas

Evolutionary Relationship

Dwarf round ray and Green Sea Turtle share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Dwarf round ray

NT — Near Threatened

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Dwarf round ray	Green Sea Turtle
Diet	—	Herbivore
Average Lifespan	—	80 years
Average Length	—	1.2 m
Average Weight	—	200.0 kg

Habitat & Geographic Range

Dwarf round ray

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.

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.