Brook Thistle vs Green Sea Turtle

Cirsium rivulare compared with Chelonia mydas

Key Differences

• Brook Thistle is Extinct while Green Sea Turtle is Endangered.

Taxonomic Classification

Rank	Brook Thistle	Green 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	Chelonia mydas

Conservation Status

Brook Thistle

EX — Extinct

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Brook Thistle	Green Sea Turtle
Diet	—	Herbivore
Average Lifespan	—	80 years
Average Length	—	1.2 m
Average Weight	—	200.0 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).

Green 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 8 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Australia, Brazil, Costa Rica, Indonesia, and Mexico. Currently classified as Endangered 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.

Green Sea Turtle

The green sea turtle is one of the largest sea turtles. They are named for the green color of their cartilage and fat, not their shells.