23 H？ntzschel W. Trace fossils and problematica. In: Teichert C, ed. Trastise on Invertebrate Paleontology, Part W, Miscellanea, Suppl. 1. Lawrence: Geological Society of America and University of Kansas Press, 1975. 1—269
[2]
24 Fillion D, Pickerill R K. Ichnology of the Upper Cambrian? To Lower Ordovician Bell Island and Wabana groups of easterm Newfoundland, Canada. Palaeont Canad, 1990, 7: 1—83
[3]
25 Bromley R G, Frey R W. Redescription of the trace fossils Gyrolites, and taxonomic evaluation of Thalassinoides, Ophimorpha and Spongelimorpha. Bull Geol Soc Denmark, 1974, 23: 311—335
[4]
26 Sheehan P M, Schiefelbein D R J. The trace fossils Thalassinoides from the Upper Ordovician of the Easterm Great Basin: Deep burrowing in the Early Paleozoic. J Paleontol, 1984, 58: 440—447
[5]
27 Droser M, Bottjer D J. A semi-quantitative field classification of ichnofabrics. J Sediment Petrol, 1986, 56: 558—559
[6]
28 Taylor A A, Goldring G R. Descripton and analysis of bioturbation and ichnofabric. J Geol Soc, 1993, 150: 141—148
[7]
29 Simpson S. On the trace fossils Chondites. Quart J Geol Soc London, 1957, 107: 475—499
[8]
30 Bromley R G, Ekdale A A. Chondrites: A trace fossils indicator of anoxia in sediments. Science, 1984, 224: 872—874
[9]
31 Seilacher A. Bathymetry of trace fossils. Mar Geol, 1967, 5: 413—428
33 Bromley R G, Ekdale A A. Composite ichnofabrics and tiering of burrows. Geol Mag, 1986, 123: 59—65
[12]
34 Keswani A D, Pemberton S G. Sedimentology, ichnology, and paleoecology of the Mississippian midale carbonate in the Williston Basin, Radville area, Saskatchewan: Preliminary interpretations. In: Karvonen R, ed. Guidebook of Core Workshop (Carboniferous to Jurassic Pangea Conference). Alberta: Canadian Society of Petroleum Geologists, 1993. 206—228
[13]
35 Orr P J. Trace fossil tiering within event beds and preservation of frozen profiles: An example from the Lower Carboniferous of Menorca. Palaios, 1994, 9: 202—210
[14]
36 Gong Y M. Flysch trace fossils from the Hercynian and Indosinian orogenic belts of the northwestern China and their palaeo environmental significance. Acta Geo1 Sin, 1999, 73: 384—394
38 Chen, Z Q, Tong J N, Zhang, K X, et al. Evironmental and biotic turnover across Permian-Triassic boundary from shallow carbonate platform in western Zhejiang, South China. Aust J Earth Sci, 2009, 56: 775—797
[17]
39 Twitchett R J, Wignall P B. Trace fossils and the aftermath of the Permo-Triassic mass extinction: Evidence from northern Italy. Palaeogeogr Palaeoclimatol Palaeoecol, 1996, 124: 137—151
[18]
40 Schubert J K, Bottjer D J. Early Triassic stromatolites as post-mass extinction disaster forms. Geology, 1992, 20: 883—886
43 Stanley S M. Delayed recovery and the spacing of major extinctions. Paleobiology, 1990, 16: 401—414
[22]
44 Cao C Q, Love G D, Hays L E, et al. Biogeochemical evidence for euxinic oceans and ecological disturbance presaging the end-Permian mass extinction event. Earth Planet Sci Lett, 2009, 281: 188—201
[23]
45 Knoll A H, Bambach R K, Payne J L, et al. Paleophysiology and end-Permian mass extinction. Earth Planet Sci Lett, 2007, 256: 295—313
3 Jin Y G, Wang Y, Wang W, et al. Pattern of marine mass extinction near the Permian-Triassic Boundary in South China. Science, 2000, 289: 432—436
[28]
4 Jiang H S, Lai X L, Luo G M, et al. Restudy of conodont zonation and evolution across the P/T boundary at Meishan section, Changxing, Zhejiang, China. Glob Planet Change, 2007, 55: 39—55
[29]
5 Song H J, Tong J N, Chen Z Q. Two episodes of foraminiferal extinction near the Permian-Triassic boundary at the Meishan section, South China. Aust J Earth Sci, 2009, 56: 765—773
[30]
6 Song H J, Tong J N, Zhang K X, et al. Foraminiferal survivors from the Permian-Triassic mass extinction in the Meishan Section, South China. Palaeoworld, 2007, 16: 105—119
[31]
7 Kaiho K, Chen Z Q, Kawahata H, et al. Close-up of the end-Permian mass extinction horizon recorded in the Meishan section, South China: Sedimentary, elemental, and biotic characterization and a negative shift of sulfate sulfur isotope ratio. Palaeogeogr Palaeoclimatol Palaeoecol, 2006, 239: 396—405
9 Mundil R, Ludwig K R, Metcalfe L, et al. Age and timing of the Permian mass extinctions: U/Pb dating of closed-system zircons. Science, 2004, 305: 1760—1763
[34]
10 Xie S C, Pancost R D, Yin H F, et al. Two episodes of microbial change coupled with Permo/Triassic faunal mass extinction. Nature, 2005, 434: 494—497
[35]
11 Xie S C, Pancost R D, Huang J H, et al. Changes in the globle carbon cycle occurred as two episodes during the Permian-Triassic crisis. Geology, 2007, 35: 1083—1086
[36]
12 Xie S C, Pancost R D, Huang J H, et al. Molecular and isotopic evidence for episodic enviormental change across the Permo/Triassic boundary at Meishan in South China. Glob Planet Change, 2007, 55: 56—65
14 Yin H F, Feng Q L, Lai X L, et al. The protracted Permo-Triassic crisis and multi-episode extinction around the Permian-Triassic boundary. Glob Planet Change, 2007, 55: 1—20
[39]
15 Tong J N, Zhang S X, Zuo J X, et al. Events during Early Triassic recovery from the end-Permian extinction. Glob Planet Change, 2007, 55: 66—80
[40]
16 Chen Z Q, Tong J N, Kaiho K, et al. Onset of biotic and environmental recovery from the end-Permian mass extinction within 1—2 million years: A case study of the Lower Triassic of the Meishan section, South China. Palaeogeogr Palaeoclimatol Palaeoecol, 2007, 252: 176—187
18 Zhang K X, Tong J N, Shi G R, et al. Early Triassic conodont-palynological biostratigraphy of the Meishan D Section in Changxing, Zhejiang Province, South China. Palaeogeogr Palaeoclimatol Palaeoecol, 2007, 252: 4—23
