👉 The term "Limopsoidea" refers to a group of extinct mammals that lived during the Late Cretaceous period, around 68-59 million years ago, known for their unique appearance and behavior. The Limopsoidea are characterized by their large size, which can reach up to 10 meters in length, and their distinctive skull features with several grooves on the sides of the head that were used for various functions, such as breathing or hunting.