👉 Cynoidea is a group of extinct marine reptiles that lived during the Mesozoic era, approximately 65 million years ago. These creatures were characterized by their long necks and large jaws, as well as their distinctive elongated heads with small eyes. They had a high metabolism and could survive in environments with extreme temperatures and pressures. Cynoidea are known for their ability to adapt to different climates and habitats, such as being able to swim or burrow underground. They
