Whether or not a Biblical word translated as a kind of serpent refers to something which may have been a dinosaur is context dependent. Sometimes a snake is just a snake. Sometimes a serpent is a Sauropod.
Dinosaur Classification
June 1st
For many years dinosaurs have been classified into two main types based on their hip structure: Ornithischia and Saurischia. Hip structure relates specifically to the different origins of Hydrosphere and Atmosphere.