👉 The term "Laocoetis" refers to a fossilized animal from the Late Cretaceous period, which is approximately 65 million years ago. It was discovered in a cave in Greece and has been described as a small herbivorous mammal with a large body size. The exact age of Laocoetis is not definitively known but it was likely around 100-200 million years old, making it one of the oldest known mammals.