4.6" Triassic Fossil Fish (Boreosomus) In Nodule - Madagascar

This is a Lower Triassic (247 million year old) fossil fish from preserved inside of a concretion. These uniquely preserved fish are found by cracking open the hard concretions, and show amazing detail such as scales and fins. There are about half a dozen different fish described from this location. This one appears to be Boreosomus gillioti

Both halves of the concretion are included.