原文Introduction: typically very spinose and densely sculptured trilobites. 7 w* Q7 ~. H9 M/ c" TCephalon: 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. / o: i9 i6 s# O/ z5 {0 i# R
Thorax: 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. 8 a* b: ?. |" s
Pygidium: 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.
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大概意思是8 - 10的每一段;2 - 3双棘 外骨骼非常多刺 3 A9 ?/ y2 y6 X, a- H; P5 q* M) W F0 l2 a0 N4 O6 Z' Z
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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# ^2 \7 y1 `9 P/ d+ b+ }/ Y+ ]% s S
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厉害
