Vertebrate Paleontology

noun a class of extinct jawed fishes that lived from the Silurian to the Permian period

• The acanthodian fish lived during the Silurian and Devonian periods.
• Have you heard of those acanthodian fish that lived millions of years ago?
• Those acanthodian fish were like the rockstars of the ancient seas.
• Her sharp wit was like the spines of an acanthodian fish, always ready to defend her arguments.

noun a group of primitive amphibians that lived during the Carboniferous and Permian periods

• Adelospondyli is an extinct group of amphibians that lived during the Carboniferous period.
• I just learned about adelospondyli in my biology class.
• Those adelospondyli creatures look like something out of a sci-fi movie.
• The complexity of the adelospondyli fossil record is a puzzle waiting to be solved.