Graue Meersau vs Grosse Tümmler, Grosstümmler

Oxynotus paradoxus compared with Tursiops truncatus

Key Differences

• Graue Meersau is Vulnerable while Grosse Tümmler, Grosstümmler is Least Concern.

Taxonomic Classification

Rank	Graue Meersau	Grosse Tümmler, Grosstümmler
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Elasmobranchii	Mammalia (Säugetiere)
Order	Squaliformes (Dornhaiartige)	Cetacea (Whales & Dolphins)
Family	Oxynotidae	Delphinidae (Oceanic Dolphins)
Genus	Oxynotus	Tursiops (Bottlenose Dolphins)
Species	Oxynotus paradoxus	Tursiops truncatus

Evolutionary Relationship

Graue Meersau and Grosse Tümmler, Grosstümmler share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Graue Meersau

VU — Vulnerable

Grosse Tümmler, Grosstümmler

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Graue Meersau	Grosse Tümmler, Grosstümmler
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

Graue Meersau

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Portugal. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Grosse Tümmler, Grosstümmler

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

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

Graue Meersau

The Angular rough shark (Oxynotus paradoxus) is a species in the genus Oxynotus. It is currently classified as Vulnerable on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

Grosse Tümmler, Grosstümmler

The most studied and recognized dolphin species, bottlenose dolphins inhabit warm and temperate oceans worldwide, from coastal shallows to the open sea. Highly intelligent with large brains relative to body size, they demonstrate self-recognition, complex communication, and social learning. They live in fluid fission-fusion societies and cooperate to herd fish. A keystone indicator species for marine ecosystem health.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇵🇹 Portugal