Outrageously Funny Word Dictionary :: Nonionoidea

👉 Nonionoidean is a group of extinct marine invertebrates that lived during the Mesozoic era, approximately 65-48 million years ago. They were characterized by their large, streamlined bodies and their ability to breathe through gills, which provided oxygen for respiration. Nonionoideans are known from fossils found in various parts of the world, including the Sargasso Sea region, where they lived during the mid-to-late Cambrian period.

Nonionoidea