The discovery of very early tetrapod tracks disrupts previously established hypotheses and forces a reconsideration of the evolutionary timeline. These tracks are older than the fossil remains of the presumed ancestors of tetrapods—elpistostegids. ...

Tetrapodomorphs represent early fish-like forms of the evolutionary line leading to tetrapods. They exhibited intermediate traits between fish and tetrapods, including lungs and fins similar to limbs. This indicates an adaptation to life in shallow water or on land. ...