👉 Palaeostriata is a scientific term that refers to the oldest and most primitive of all fossilized species. It was first described by German paleontologist Wilhelm von Humboldt in 1820, but it wasn't until the 1960s that the term "palaeostriata" became widely recognized as a distinct group of organisms. Palaeostriata are characterized by their absence of any fossilized teeth or other external remains that indicate the presence of