Sturgeon is one of the oldest fish in the world, and there are 25 ~ 26 species of sturgeon. Sturgeon belongs to Chordata, Vertebrate Subdivision, and belongs to Skeletonema, Actinidia, Chondroscleroderma, Acipenseridae and Acipenser. There are 4 genera and 24 species of ACIPENSER in the world, among which, there are 2 species of Herpetus, 7 species of ACIPENSER/kloc-0, 2 species of ACIPENSER and 3 species of ACIPENSER. There are 3 genera and 8 species of ACIPENSER in China, among which: Heracle 1 species, ACIPENSER 6 species, Pseudosciaena 1 species. The common species in China is Siberian ACIPENSER, and the American paddlefish are all economic fish. The Chinese sturgeon spoon in the Yangtze River basin is listed as a first-class protected animal in China. The following are the main classifications of sturgeon, so I won't describe the genus Bighead one by one

European bighead carp, Darwinian bighead carp

Sturgeon

Russian sturgeon, flash sturgeon, naked-bellied sturgeon, Siberian sturgeon, corpuscle sturgeon, sturgeon schrenckii, long-snout sturgeon, Adriatic sturgeon, Chinese sturgeon, Darwinian sturgeon, Japanese sturgeon, middle-snout sturgeon, lake sturgeon, short-snout sturgeon, high-headed sturgeon, and multiple-breasted sturgeon.

Shovel sturgeon

Missouri shovel sturgeon, Mississippi shovel sturgeon

pseudoscaphirhynchus

Acipenser amurensis, ACIPENSER amurensis and ACIPENSER sieboldii.

Acipenseridae

Acipenser genus

Yangtze sturgeon

Acipenser genus

Paddy sturgeon

Fossils of the Mississippi paddlefish, Acipenser beipiao