Cinnamon-colored Thomasomys vs Komoren-Quastenflosser

Thomasomys cinnameus compared with Latimeria chalumnae

Key Differences

• Cinnamon-colored Thomasomys is Least Concern while Komoren-Quastenflosser is Critically Endangered.

Taxonomic Classification

Rank	Cinnamon-colored Thomasomys	Komoren-Quastenflosser
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Mammalia (Säugetiere)	Coelacanthi (Coelacanthi)
Order	Rodentia (Nagetiere)	Coelacanthiformes (Quastenflosser)
Family	Cricetidae	Latimeriidae
Genus	Thomasomys	Latimeria
Species	Thomasomys cinnameus	Latimeria chalumnae

Evolutionary Relationship

Cinnamon-colored Thomasomys and Komoren-Quastenflosser share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Cinnamon-colored Thomasomys

LC — Least Concern

Komoren-Quastenflosser

CR — Critically Endangered

Population: ~500

Trend: Decreasing ↓

Physical Characteristics

Attribute	Cinnamon-colored Thomasomys	Komoren-Quastenflosser
Diet	—	Carnivore
Average Lifespan	—	100 years
Average Length	—	1.8 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Cinnamon-colored Thomasomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

Komoren-Quastenflosser

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 8 distinct biome types spanning the Australasia and Afrotropic and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Comoros, Indonesia, Mozambique, and South Africa. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Cinnamon-colored Thomasomys

The Cinnamon-colored Thomasomys (Thomasomys cinnameus) is a species in the genus Thomasomys. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Komoren-Quastenflosser

A living fossil thought extinct for 65 million years until rediscovered off South Africa in 1938, coelacanths can reach 2 meters and 90 kg. They belong to an ancient lobe-finned lineage more closely related to tetrapods than to ray-finned fish, making them scientifically invaluable for understanding vertebrate evolution. Found in deep rocky reef habitats of the Indian Ocean, they are nocturnal and undergo internal fertilization, giving birth to fully formed live young. Critically Endangered.