原文Introduction: typically very spinose and densely sculptured trilobites. " \ ~: V! O0 }4 s
Cephalon: 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. ( @1 _& n3 C7 _3 V: ^9 DThorax: 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. ; z! ]9 H0 X0 OPygidium: 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 ( H+ N# d8 f' D* f, |9 G- G( p; t: G' C& M) C' C: a
" v @/ E' L; {6 [" z. r # l5 Y) g8 M0 @& F1 C: B3 xpygidium 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
Ceratonurus ! Q3 q1 t% J3 d* u& a' _$ r" |2 K2 H6 y1 q: p& a; M , H) M P5 x9 V/ f0 J4 p) P
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Kettneraspis0 U8 L5 L, d9 \$ I/ ]$ \( |( N : X. _, C- N" F3 N 2 L( O$ G. D( N. B1 J; c0 n) g4 m7 R5 h( D. m) w) c5 B& i% I; b c
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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
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厉害
