Labyrinthodontia is a term used to describe an extinct type of amphibian that lived during the Paleozoic and Mesozoic eras. When trying to discuss these creatures, it may be helpful to have a few synonyms to use interchangeably. Some options might include "labrynthodonts," "toothed amphibians," or "paleoamphibians." Other synonyms for this word could include "dinosaur-era amphibians" or "prehistoric amphibians." Using these synonyms could help to add variety and interest to your writing, while also making your content more accessible for readers who may not be familiar with the term labyrinthodontia.