Phanerozoic global chronostratigraphic boundaries are formally defined by a Global Standard Section and Point (GSSP-COWIE et al, 1986), whereas Precambrian chronostratigraphic boundaries are formally defined in terms of absolute ages: Global Standard Stratigraphic Age(GSSA-REMANE et al, 1996) In order to become mandatory a boundary definition as to be accepted by 60%o majority in successive votes, first by the working group responsible for the choice of the GSSP then by the concerned Subcommission of Ics and finally by the full commission of Ics. with its ratification(wC/)through IUGS, the GSSP or gSSa becomes mandatory(强制性的)
Phanerozoic global chronostratigraphic boundaries are formally defined by a Global Standard Section and Point (GSSP - COWIE et al, 1986), whereas Precambrian chronostratigraphic boundaries are formally defined in terms of absolute ages : Global Standard Stratigraphic Age (GSSA- REMANE et al, 1996). In order to become mandatory, a boundary definition as to be accepted by 60% majority in successive votes, first by the working group responsible for the choice of the GSSP, then by the concerned Subcommission of ICS and finally by the Full Commission of ICS. With its ratification(批准） through IUGS, the GSSP or GSSA becomes mandatory（强制性的）. Early Paleozoic division
早古生代的主要特征 Pz1 main features 1生物界寒武纪生物大爆发( Cambrian explosion);海生无脊椎动物空前繁盛(环 境分析、地层对比、生态分异、生物分区) 植物登陆;奥陶纪末期生物大绝灭(mass extinction)事件 2属加里东( Caledonian)构造阶段,陆壳板块 扩大和增生(陆相沉积、生物上陆) 3沉积类型复杂多样,奥陶纪末期冈瓦纳 ( Gondwana)大陆发育冰川
1 生物界—寒武纪生物大爆发(Cambrian explosion）；海生无脊椎动物空前繁盛（环 境分析、地层对比、生态分异、生物分区); 植物登陆；奥陶纪末期生物大绝灭(mass extinction)事件 2 属加里东(Caledonian)构造阶段，陆壳板块 扩大和增生（陆相沉积、生物上陆） 3 沉积类型复杂多样，奥陶纪末期冈瓦纳 (Gondwana)大陆发育冰川 早古生代的主要特征 Pz1 main features
第7章早古生代的地史 Early Paleozoic geohistory 7.1早古生代概述 Pzl abstract 72早古生代的生物界 Pzl life 73中国东部早古生代古地理 Pzl paleogeography, E. China 74早古生代板块构造概况 zI plate tectonics A Eoredlichia 75早古生代的沉积矿产 Pzl deposit ores
第7章 早古生代的地史 Early Paleozoic geohistory 7.1 早古生代概述 Pz1 abstract 7.2 早古生代的生物界 Pz1 life 7.3 中国东部早古生代古地理 Pz1 paleogeography, E. China 7.4 早古生代板块构造概况 Pz1 plate tectonics 7.5 早古生代的沉积矿产 Pz1 deposit ores Eoredlichia
Early Paleozoic life寒武系底界 Manykaian GSSP选定在纽芬兰 Primarily confined to shallow 岛(加东南),以遗迹 water marine environments 化石 Tricophycus Animals with hard body parts pedum首现为标志, appear at the beginning of the 年龄543Ma; Cambrian-this defines the beginning of the Phanerozoic Important fossils: trilobites, graptolites, Cephalopods(mainly nautiloids), conodonts, brachiopods Other fossils: Mollusca. corals Arthropoda, Echinodermata, Ⅴ ertebrata, sponges
Primarily confined to shallowwater marine environments. Animals with hard body parts appear at the beginning of the Cambrian - this defines the beginning of the Phanerozoic. Important fossils: trilobites, graptolites, Cephalopods (mainly nautiloids), conodonts, brachiopods Other fossils: Mollusca, corals, Arthropoda, Echinodermata, Vertebrata，sponges 寒武系底界 （Manykaian） GSSP选定在纽芬兰 岛(加东南)，以遗迹 化石Tricophycus pedum首现为标志， 年龄543Ma； Early Paleozoic Life
全球寒武系的底界 SYSTEMS SERIES STAGES Ordovician Tremadocian Cambrian Stage 10 Undefined Furongian Cambrian Staue g series (Undefined) Paibian Stage Cambrian Stage 7 Cambrian ( Undefined) Series 3 Cambrian Stage 6 (Undefined) (Undefined) Cambrian Forture head. Newfoundland Undefined) Cambrian Cambrian St Series 2 (Undefined) (Undefined) Cambrian Stage 3 (Undefined) Cambrian (Undefined) ?FA Tricoplycus pedum (Undefined) Cambrian Stage I ( Undefined) Ediacaran 据彭善池,2004 FAdof Trichophycus pedum(GSSP)
全球寒武系的底界 Forture Head, Newfoundland 据彭善池，2004 Tricophycus pedum