A sclerite-bearing stem group entoproct from the early Cambrian and its implications
Zhang, Zhifei*; Holmer, Lars E.; Skovsted, Christian B.; Brock, Glenn A.; Budd, Graham E.; Fu, Dongjing; Zhang, Xingliang; Shu, Degan; Han, Jian; Liu, Jianni; Wang, Haizhou; Butler, Aodhan; Li, Guoxiang
SCIENTIFIC REPORTS, 2013, 3: 1066.