Sturgeon
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Sturgeon are the 27 species of fish belonging to the family Acipenseridae. The earliest sturgeon fossils date to the Late Cretaceous, and are descended from other, earlier acipenseriform fish, which d
Yanosteus longidorsalis, a member of the extinct acipenseriform family Peipiaosteidae from the Early Cretaceous (125–120 Mya) Yixian Formation in Liaoning, China
A fossil sturgeon (right) from the Tanis fossil site, showing the longstanding morphological conservatism of this group
The Atlantic sturgeon (A. oxyrhynchus) is one of the most basal sturgeon species
Shovelnose sturgeons (Scaphirhynchus platorynchus) are morphologically atypical members of the group
Kaluga (fish)
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The kaluga, also known as the kaluga sturgeon, river beluga sturgeon, is a large predatory sturgeon found in the Amur River basin from Russia to China and near Hokkaido in Japan. With a maximum size o
Huso dauricus in Primorskiy Oceanarium 1
Рыба калуга фото1 modified
The Amur river, an important habitat for the Kaluga sturgeon.
A 3.7 m (12 ft)-long, 500 kg (1,100 lb), 70 year old Kaluga fish which stored around 4 million eggs