In Depth A fairly small lobe-finned fish, Osteolepis is noted for having heavy bony scales, features that may have helped with buoyancy issues. Even more interesting though was an outer covering of cosmine, a slightly spongy bony material that is known to have covered the scales of lobe-finned fish. This cosmine had a series of … Read more
In Depth Gogonasus was first named in 1985 from a single preserved snout, but since this time better and better specimens have been recovered, with several skulls, and a complete three dimensionally preserved individual discovered in 2005 (another example of how the Gogo Formation of Australia is yielding exquisitely well preserved fossils). Gogonasus is thought … Read more