A REAPPRAISAL OF THE ORIGIN AND BASAL RADIATION OF THE OSTEICHTHYES by Friedman, M, Brazeau, MD

“…The earliest Actinoptergyii (ray-finned fishes) and Sarcopterygii (lobe-finned fishes) have been studied intensely, and a consistent picture of interrelationships has begun to emerge for the latter. …”

Initial radiation of jaws demonstrated stability despite faunal and environmental change. by Anderson, P, Friedman, M, Brazeau, MD, Brazeau, MD, Rayfield, E

“…Devonian functional space is dominated by lobe-finned fishes and 'placoderms'; high disparity within the latter implies considerable trophic innovation among jaw-bearing stem gnathostomes. …”

Initial radiation of jaws demonstrated stability despite faunal and environmental change by Anderson, P, Friedman, M, Brazeau, MD, Rayfield, E

“…Devonian functional space is dominated by lobe-finned fishes and 'placoderms'; high disparity within the latter implies considerable trophic innovation among jaw-bearing stem gnathostomes. …”