👉 Termilenary is a term used in the field of paleontology to describe a group of organisms that are very old and have remained relatively unchanged over millions or even billions of years. These organisms are often referred to as "termiliths" because they were formed from a single cell, which was then enclosed within a larger organism for thousands or tens of thousands of years. Termilens are characterized by their complex structures, such as the presence of a complex network of internal and external tubes