Archeolepidotus

This fossil fish is unique. Thanks to the microfossils contained in the rock, it could be dated back to the Permian-Triassic extinction event (about 252 million years ago). This was a crucial moment in the Earth's history, when life itself was threatened with extinction. Archaeolepidotus represents the Parasemionotiformes, which were already around in the Late Permian and then underwent extensive development in the Early Triassic. The majority of today's fish originate from this group.