From fins to limbs / Jennifer A. Clack. A firm step from water to land / Per Erik Ahlberg and Jennifer A. Clack. A Devonian tetrapod-like fish and the evolution of the tetrapod body plan / Edward B. Daeschler, Neil H. Shubin and Farish A. Jenkins. The pectoral fin of Tiktaalik roseae and the origin of the tetrapod limb / Neil H. Shubin, Edward B. Daeschler and Farish A. Jenkins.