Calderon Gris vs Dwarf round ray

Grampus griseus compared with Urotrygon nana

Key Differences

• Calderon Gris is Least Concern while Dwarf round ray is Near Threatened.

Taxonomic Classification

Rank	Calderon Gris	Dwarf round ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Myliobatiformes (Myliobatiformes)
Family	Delphinidae (Oceanic Dolphins)	Urotrygonidae
Genus	Grampus	Urotrygon
Species	Grampus griseus	Urotrygon nana

Evolutionary Relationship

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

Conservation Status

Calderon Gris

LC — Least Concern

Dwarf round ray

NT — Near Threatened

Physical Characteristics

Attribute	Calderon Gris	Dwarf round ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Calderon Gris

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador, Venezuela).

Dwarf round ray

Calderon Gris

The Calderon Gris (Grampus griseus) is a species in the genus Grampus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.