Fossil expands ancient fish family tree (IMAGE) Flinders University Caption Illustration of the newly described lungfish Isityumzi (lower right) and other Late Devonian freshwater ecosystem creatures including an early tetrapod (Unzantsia) by South African earth sciences illustrator Maggie Newman. Credit Artist's impression by Maggie Newman Usage Restrictions Please credit Maggie Newman License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.