4 5 1 2 00 7 1 V E R TEBR A TA P A L A S IA TICA pp. 1 12 figs. 1 4 1 ) 1,2,3 1 (1 100044) (2 100039) (3 BS8 1RJ) : ( S tephaspis gen. nov. ) , : , , ; , , , ; , ; , , , ; , , ; , , ; , , V ; , , : , , , , :Q915. 861 :A : 1000 - 3118 (2007) 01 - 0001 - 12 1 , , ( , 1973; , 2000) 224 m, (early Lochkovian) , , , ( , 1998) 颌 , ( , 1992) 颌 , Yunnanogaleaspis m ajor ( , 1980) , N ochelaspis m aeand rina ( , 1992) Polybranchiaspis liaojiaoshanensis, P. m inor, Laxaspis ( Polybranchiaspis ) yulongssus, D iandongaspis xishancunensis, Laxaspis qujingensis, Laxaspis rostrata ( , 1) ( : 40332017, 40572021) ( : 2006CB806400) : 2006 - 06 - 30