Guiana Dolphin vs Spinetail ray

Sotalia guianensis compared with Bathyraja spinicauda

Key Differences

• Guiana Dolphin is Data Deficient while Spinetail ray is Near Threatened.

Taxonomic Classification

Rank	Guiana Dolphin	Spinetail 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)	Arhynchobatidae
Genus	Sotalia	Bathyraja
Species	Sotalia guianensis	Bathyraja spinicauda

Evolutionary Relationship

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

Conservation Status

Guiana Dolphin

DD — Data Deficient

Spinetail ray

NT — Near Threatened

Physical Characteristics

Attribute	Guiana Dolphin	Spinetail ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Guiana Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Spinetail ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.