New Streamlined Galeaspid (Jawless Fish) Found From the Lower Devonian of Yunnan, China
Dr. ZHU Min, Institute of Vertebrate Paleontology and Paleoanthropology (IVPP), Chinese Academy of Sciences, and his team described a new galeaspid, Rhegmaspis xiphoidea, from the Lower Devonian Posongchong Formation of Zhaotong, Yunnan Province, China. The new form has a torpedo-shaped head-shield, a long rostral process and ventrolaterally set eyes, which highlight an adaptation to an active suprabenthic lifestyle as reported in the journal of Vertebrata PalAsiatica.