👉 The term "nautiform" is a term used in marine biology and geology. It refers to the formation of a series of small, round structures or formations that are often found on the seabed. These structures can be made up of sedimentary rocks or even larger rock fragments, depending on their size. The formation of nautiforms is thought to have occurred during the Late Cretaceous period and was caused by the accumulation of large amounts of organic material over time.