Brook Thistle vs Leatherback Sea Turtle

Cirsium rivulare compared with Dermochelys coriacea

Key Differences

Brook Thistle is Extinct while Leatherback Sea Turtle is Vulnerable.

Taxonomic Classification

Rank	Brook Thistle	Leatherback Sea Turtle
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Reptilia (Reptiles)
Order	Asterales (Daisies & Sunflowers)	Testudines (Turtles & Tortoises)
Family	Asteraceae (Daisy Family)	Cheloniidae (Sea Turtles)
Genus	Cirsium	Chelonia (Green Sea Turtles)
Species	Cirsium rivulare	Dermochelys coriacea

Conservation Status

Brook Thistle

EX — Extinct

Leatherback Sea Turtle

VU — Vulnerable

Population: ~35.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Brook Thistle	Leatherback Sea Turtle
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	2.0 m
Average Weight	—	500.0 kg

Habitat & Geographic Range

Brook Thistle

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found across Europe (7 countries).

Leatherback Sea Turtle

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 5 distinct biome types spanning the Australasia and Indomalayan and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Costa Rica, Indonesia, Malaysia, and Trinidad and Tobago. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Brook Thistle

The Brook Thistle (Cirsium rivulare) is a species in the genus Cirsium. It is currently classified as Extinct on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.