Orthoceras is the name of a genus of extinct cephalopods, which are a type of mollusk that includes animals such as squid and octopuses. Orthoceras lived during the middle to late Ordovician period, which was approximately 488 to 443 million years ago.
Orthoceras fossils are often found as long, straight shells with a pointed end and a flat base. These shells are made of chitin, a type of tough, flexible protein that is similar to the material that makes up insect exoskeletons. Orthoceras fossils are often found in sedimentary rock formations, and are often well-preserved due to the hard and durable nature of their shells.
Orthoceras fossils are sometimes collected and used for decorative purposes, or as a teaching tool to help people learn about the history of life on Earth. They are also sometimes believed to have metaphysical properties, such as the ability to promote clarity and focus or to support spiritual growth and development.