👉 Crys-pynarthr (cry-sy-ahn-arty) is a genus of extinct arthropods in the class Arachnida, meaning "thighed" arthropods. It includes a wide range of species from the early Cretaceous period until the Late Jurassic and Early Cenozoic periods. These creatures are known for their unique adaptations, including strong claws and elongated bodies that allow them to crawl on surfaces.