Long-tailed Ground Squirrel vs Smith's Thorius

Urocitellus undulatus compared with Thorius smithi

Key Differences

• Long-tailed Ground Squirrel is Least Concern while Smith's Thorius is Critically Endangered.

Taxonomic Classification

Rank	Long-tailed Ground Squirrel	Smith's Thorius
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Caudata (Caudata)
Family	Sciuridae (Squirrels)	Plethodontidae
Genus	Urocitellus	Thorius
Species	Urocitellus undulatus	Thorius smithi

Evolutionary Relationship

Long-tailed Ground Squirrel and Smith's Thorius share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Long-tailed Ground Squirrel

LC — Least Concern

Smith's Thorius

CR — Critically Endangered

Physical Characteristics

Attribute	Long-tailed Ground Squirrel	Smith's Thorius
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Long-tailed Ground Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.