Amphibian type refers to animals that possess both aquatic and terrestrial adaptations, allowing them to live in both environments. Synonyms for amphibian type include amphibious, semi-aquatic, crocodilian, caudate, anuran, urodele, perennibranchiate, and salamander-like. The term amphibian type can also refer to species that are considered intermediate between amphibians and reptiles, such as the extinct animals known as diadectomorphs. Whether living in water or on land, amphibian type creatures are vital to the ecosystems they inhabit and are known for their unique adaptability and versatility.