its anatomy has been crucial for reconstructing the group's phylogeny and exploring the adaptive functions of cranial domes

making it among the largest invertebrates of the Paleozoic

Archeopteryx lithographica is an emblematic species of evolution

Its skull had specialized features

Isisaurus colberti is the only known species of the extinct Isisaurus ("Indian Statistical Institute lizard") genus of titanosaurian sauropod dinosaur

Stegosaurus stenops Qianzhousaurus its anatomy has been crucialStegosaurus stenops is one of the best known and most studied species of dinosaurs in the genus Stegosaurus, which lived during the Late Jurassic period, approximately 155 to 150 million years ago. Stegosaurus stenops fossils have been found primarily in North America, especially in the Morrison Formation, which encompasses parts of present day Colorado, Wyoming, and Utah. This herbivorous dinosaur is famous for its distinctive appearance,