👉 The term "Notodontinae" refers to a group of extinct animals that lived during the Mesozoic Era, primarily in the Late Triassic period. These animals are characterized by their lack of teeth and jaws, which allowed them to have a more streamlined and efficient form compared to modern animals. Notodontids were part of the Triassic period and had a significant impact on the evolution of various groups of insects, such as ants, beetles, and spiders.