a majestic pliosaurus gliding near the ocean floor, stirring up sand and marine life

pliosaurus underwater prehistoric ocean predator reptile swimming marine life nikon sand stirring seabed ancient underwater action aquatic fish wide-angle depth prehistoric marine powerful sand cloud creature ocean undersea movement nikon d850 ancient aquatic clear water natural light sea ecosystem low angle floor large atmosphere world sea swimming shot deep undersea environment reptiles wild animal plants scene creatures powerful predators waters hunter life