👉 A palechinoid is a group of small, round-shaped fossils that are often found in sedimentary rock and have been associated with early marine life. These fossils were most commonly found in the Paleozoic era, around 540 million years ago, but they can also be found in other timescales. Palechinoids are characterized by their unique shape and size, which allows them to be distinguished from other types of chondricha, which are similar to chitin. In addition
