Dwarf round ray vs Haviside s Dolphin

Urotrygon nana compared with Cephalorhynchus heavisidii

Taxonomic Classification

Rank	Dwarf round ray	Haviside s 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	Cephalorhynchus
Species	Urotrygon nana	Cephalorhynchus heavisidii

Evolutionary Relationship

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

Conservation Status

Dwarf round ray

NT — Near Threatened

Haviside s Dolphin

NT — Near Threatened

Physical Characteristics

Attribute	Dwarf round ray	Haviside s Dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf round ray

Haviside s Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.