Yu is credited with first describing the lobe - finned fish Psarolepis romeri , a transitional species between fish and amphibians .
Dr. Xiaobo Yu is a Chinese palaeontologist and professor on biological sciences .
palaeontologist is credited with first describing the lobe - finned fish Psarolepis romeri , a transitional species between fish and amphibians .
Dr. Xiaobo Yu is a Chinese palaeontologist and professor on biological sciences .