Calderon Gris vs undulate ray

Grampus griseus compared with Raja undulata

Key Differences

• Calderon Gris is Least Concern while undulate ray is Endangered.

Taxonomic Classification

Rank	Calderon Gris	undulate ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Rajiformes (Rajiformes)
Family	Delphinidae (Oceanic Dolphins)	Rajidae
Genus	Grampus	Raja
Species	Grampus griseus	Raja undulata

Evolutionary Relationship

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

Conservation Status

Calderon Gris

LC — Least Concern

undulate ray

EN — Endangered

Physical Characteristics

Attribute	Calderon Gris	undulate 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).

undulate ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Belgium. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.