3.8" Triassic Fossil Fish (Pteronisculus?) 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 most closely resembled Pteronisculus but the preservation makes identification difficult.

Both halves of the concretion are included.