What is the Largest Fish Species That Ever Lived? What Was Its Maximum Size?

The largest fish species that ever lived is the prehistoric Leedsichthys problematicus. This colossal fish, which inhabited the oceans during the Late Jurassic period (around 165 million years ago), is estimated to have reached a staggering 20 to 25 meters (66 to 82 feet) in length and weighed up to 45 tonnes (49.6 tons). Its sheer size dwarfed even the largest modern fish, the whale shark, which typically measures around 12 to 14 meters (39 to 46 feet) in length.

While Leedsichthys problematicus was undoubtedly the largest fish in terms of overall length, it may not have been the heaviest. Another extinct fish species, the Pliosaurus funkei, is thought to have weighed significantly more. This marine reptile, which lived during the Late Jurassic period, is estimated to have reached a length of 15 to 18 meters (49 to 59 feet) and weighed up to 40 tonnes (44 tons).

  1. What was the estimated maximum length of Leedsichthys problematicus? 20 to 25 meters (66 to 82 feet)
  2. During which geological period did Leedsichthys problematicus live? Late Jurassic period
  3. What was the approximate weight of Pliosaurus funkei? Up to 40 tonnes (44 tons)
  4. Which modern fish species comes closest in size to Leedsichthys problematicus? Whale shark
  5. True or False: Leedsichthys problematicus was a marine reptile. False
  1. Shimano Fishing Reel
  2. Daiwa Fishing Rod
  3. Rapala Fishing Lure
  4. Berkley Fishing Line
  5. Abu Garcia Fishing Waders

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