Blacktail spurdog vs Franciscana

Squalus melanurus compared with Pontoporia blainvillei

Key Differences

• Blacktail spurdog is Data Deficient while Franciscana is Vulnerable.

Taxonomic Classification

Rank	Blacktail spurdog	Franciscana
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Squaliformes (Squaliformes)	Cetacea (Whales & Dolphins)
Family	Squalidae	Pontoporiidae
Genus	Squalus	Pontoporia
Species	Squalus melanurus	Pontoporia blainvillei

Evolutionary Relationship

Blacktail spurdog and Franciscana share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blacktail spurdog

DD — Data Deficient

Franciscana

VU — Vulnerable

Physical Characteristics

Attribute	Blacktail spurdog	Franciscana
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Franciscana

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Blacktail spurdog

The Blacktail spurdog (Squalus melanurus) is a species in the genus Squalus. It is currently classified as Data Deficient on the IUCN Red List.