Black-Horned Gem vs Green Sea Turtle

Microchrysa polita compared with Chelonia mydas

Key Differences

• Black-Horned Gem is Least Concern while Green Sea Turtle is Endangered.

Taxonomic Classification

Rank	Black-Horned Gem	Green Sea Turtle
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Arthropoda (节肢动物门)	Chordata (脊索动物门)
Class	Insecta (昆蟲綱)	Reptilia (爬行纲)
Order	Diptera (雙翅目)	Testudines (龟鳖目)
Family	Stratiomyidae	Cheloniidae (Sea Turtles)
Genus	Microchrysa	Chelonia (Green Sea Turtles)
Species	Microchrysa polita	Chelonia mydas

Evolutionary Relationship

Black-Horned Gem and Green Sea Turtle share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Black-Horned Gem

LC — Least Concern

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Black-Horned Gem	Green Sea Turtle
Diet	—	Herbivore
Average Lifespan	—	80 years
Average Length	—	1.2 m
Average Weight	—	200.0 kg

Habitat & Geographic Range

Black-Horned Gem

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

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.

Black-Horned Gem

The Black-Horned Gem (Microchrysa polita) is a species in the genus Microchrysa. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Green Sea Turtle

绿海龟是最大的海龟之一。其名称源于软骨和脂肪的绿色，而非龟壳的颜色。