👉 Semiterrestrial is a concept in Earth's geology and paleontology that refers to the presence of terrestrial fossils on the surface of the Earth, as opposed to the water-lying environment found beneath. This term was introduced by Carl Linnaeus in his seminal work "Systema Naturae" (1753), which described the classification and distribution of plants, animals, and fungi based on their physical characteristics. The study of terrestrial fossils has been crucial for understanding Earth's history and evolution