Amazon River Dolphin vs Smith's Thorius

Inia geoffrensis compared with Thorius smithi

Key Differences

• Amazon River Dolphin is Data Deficient while Smith's Thorius is Critically Endangered.

Taxonomic Classification

Rank	Amazon River Dolphin	Smith's Thorius
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Cetacea (Whales & Dolphins)	Caudata (Caudata)
Family	Iniidae	Plethodontidae
Genus	Inia	Thorius
Species	Inia geoffrensis	Thorius smithi

Evolutionary Relationship

Amazon River Dolphin and Smith's Thorius share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Amazon River Dolphin

DD — Data Deficient

Smith's Thorius

CR — Critically Endangered

Physical Characteristics

Attribute	Amazon River Dolphin	Smith's Thorius
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon River Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Smith's Thorius

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

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

Amazon River Dolphin

The Amazon River Dolphin (Inia geoffrensis) is a species in the genus Inia. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Typically found in diverse terrestrial and aquatic ecosystems.