Explanation :

• The Chinese paddlefish (Psephurus gladius),native to the Yangtze River was one of the world's largest species of freshwater species.
• It was one of only two living species of paddlefish, the other being the American paddlefish (Polyodon spathula) part of an ancient group of fish known to have existed since the Lower Jurassic, 200 million years ago. It was also the only species in the genus Psephurus.
• Referred to as the “aquatic panda of rivers”, the Chinese paddlefish was an elusive and long-protected species. Capable of growing up to 7 meters long, it had a distinctive elongated nose.
• Prior to the extinction, it was listed as “critically endangered,” by the IUCN.
• It is the third species unique to the Yangtze River ecosystem to be declared extinct, following the Baiji dolphin in 2006 and the Chinese shad in 2015.