styluksia
Stylusia is a genus of extinct cephalopods belonging to the order Nautilida. These marine invertebrates inhabited the Earth's oceans during the Paleozoic Era, specifically from the Silurian period. Stylusia is characterized by its distinctive shell, which is typically coiled and possesses a complex internal structure. The shell often exhibits prominent ribbing or ornamentation, providing clues about its growth patterns and the environment in which it lived.
Fossilized remains of Stylusia are found in various geological formations dating back to the Silurian period,