Life restoration of Pterogonaspis yuhaii. (Photo provided to China News Service)
New material of the 410-million-year-old Pterogonaspis yuhaii from Qujing City, southwest China's Yunnan Province, reveals the morphology of the ventral side of the headshield for the first time.
File photo taken in 2018 shows scientists work at the excavation site in Qujing City, southwest China's Yunnan Province. (Photo provided to China News Service)