The Pebbles and Bamm-Bamm Show (1971)

S01E09 The Terrible Snorkosaurus

Pebbles catches wind that Sea Rock World is offering $1000 for a terrible snorkosaurus, so she and her friends embark on a mission to catch one. However, the snorkosaurus they find is surprisingly charming, leading Sea Rock World to lose interest. To keep him safe, Pebbles hides him in her parents' swimming pool, unaware that Fred is gearing up to host a pool party for his boss.