Dwarf round ray vs Guiana Dolphin

Urotrygon nana compared with Sotalia guianensis

Key Differences

• Dwarf round ray is Near Threatened while Guiana Dolphin is Data Deficient.

Taxonomic Classification

Rank	Dwarf round ray	Guiana Dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Myliobatiformes (Myliobatiformes)	Cetacea (Whales & Dolphins)
Family	Urotrygonidae	Delphinidae (Oceanic Dolphins)
Genus	Urotrygon	Sotalia
Species	Urotrygon nana	Sotalia guianensis

Evolutionary Relationship

Dwarf round ray and Guiana Dolphin share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Dwarf round ray

NT — Near Threatened

Guiana Dolphin

DD — Data Deficient

Physical Characteristics

Attribute	Dwarf round ray	Guiana Dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf round ray

Guiana Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.