原文Introduction: typically very spinose and densely sculptured trilobites. $ E6 Y7 z$ U5 p$ R0 i7 @0 [0 o1 VCephalon: convex; glabella tapering forward or subparallel, extending to anterior margin or nearly so, less complex lobation than in Lichoidea; eye ridges run from anterior end of glabella to palpebral lobe; opisthoparian sutures, often placed on sutural ridges; distinct notch in margin of free cheek adjacent to where anterior sutures cut cephalic margin; facial sutures secondarily lost in some genera; short genal spines typically present. " s4 j# p, X+ TThorax: 8 – 10 segments; tips of each bear 2 – 3 pairs of spines (anterior pair often difficult to see, ventrally directed); often with symmetrical row arrangements of pleural spines or tubercles. + J, T! ^5 N+ F2 Y: SPygidium: micropygous, short, transverse, with 2 – 3 axial rings (3rd often faint), one or more pairs of tubular border spines, the largest of which connected to first axial ring by prominent ridge.
0 @# P: _ {2 c# j" }. ]$ `! v/ s . Z8 {2 |) {, n1 b, [8 r$ ~% Z w% z ! r/ {2 N: F" X* h 2 V7 S- k3 ?$ |' j& \ 4 K* }5 z% A1 ?, p" y1 L. }大概意思是8 - 10的每一段;2 - 3双棘 外骨骼非常多刺 ' | |9 |6 r9 ~9 q9 t+ K1 W+ C! b. H
" C" S" z7 M W) J8 ^$ L' ^' o $ @ [" P5 j a4 `2 v' ]0 ]pygidium micropygous transverse,bearing one or more pairs of spines,larges of which connected to first axial ring via porminent ridge 这句的大概意思是小尾板横向、轴承的一个或多个双棘,具有轴环然后连接到通过的背脊上。 翻译错了帮忙改正
狗仔卡
发表于 2010-8-13 21:05:23
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡
这里有一些Odontopleuroidea的代表
厉害
