When did the pallid sturgeon become an endangered species?
Pallid sturgeon
Taxonomists S. A. Forbes and R. E. Richardson classified the pallid sturgeon in 1905, grouping it in the genus Parascaphirhynchus and the family Acipenseridae, which includes all sturgeon worldwide. Its closest relatives are the shovelnose sturgeon (Scaphirhynchus platorynchus), which is still relatively common, and the critically endangered Alabama sturgeon (Scaphirhynchus suttkusi), which may soon become extinct.[7][8] These three species belong to the subfamily Scaphirhynchinae, which has only one other genus, Pseudoscaphirhynchus, represented by three species found in west-central Asia.