👉 Kreyellidae are a group of extinct mammalian species from the late Cretaceous period that lived in West Africa, known for their distinctive appearance and behavior. These animals were characterized by large, elongated bodies with short tails and a slender body. They had a long neck and a wide nasal passage, which allowed them to breathe through their nostrils. Kreyellidae are believed to have been closely related to the extinct species of Cephalopoda, such as the