While the common ancestor of vertebrates with synovial joints is still a mystery, the oldest specimen with evidence of these ...
Sturgeons are one of the oldest groups of fishes. Sporting an armor of five rows of bony, modified scales called dermal ...
Sturgeons are one of the oldest groups of fishes. Sporting an armor of five rows of bony, modified scales called dermal ...
These joints are present in land vertebrates and bony fish, suggesting this feature had evolved in the common ancestors of these groups, but it remains unclear when in early vertebrate evolution ...
Brock’s iron shield fish adds to the rich prehistoric history of McGraths Flat, and contributes to its classification as a ...
These joints are present in land vertebrates and bony fish, suggesting this feature had evolved in the common ancestors of these groups, but it remains unclear when in early vertebrate evolution ...
Australian Museum The fish was “slender” and “fusiform,” and it had an adipose fin, a fleshy dorsal fin without bony rays that ... ecosystems and the evolution of its fish species ...