References

Allen, PA & PF Hoffman (2005), Extreme winds and waves in the aftermath of a Neoproterozoic glaciation. Nature 433: 123-127.

Amthor, JE, JP Grotzinger, S Schröder, & BC Schreiber (2002), Tectonically-driven evaporite-carbonate transitions in a Precambrian/Cambrian saline giant: Ara Salt Basin of South Oman. AAPG An. Mtg. WWW. (abstr.)

Awramik, SM & JP Vanyo (1986), Heliotropism in modern stromatolites. Science 231: 1279-1281.

Bartley, JK & LC Kah (2004), Marine carbon reservoir, C_org-C_carb coupling, and the evolution of the Proterozoic carbon cycle. Geology 32: 129-132.

Beyth, M, D Avigad H-U Wetzel, A Matthews & SM Berhe (2003), Crustal exhumation and indications for Snowball Earth in the East African Orogen: north Ethiopia and east Eritrea. Precam. Res. 123: 187–201.

Bodiselitsch, B, C Koeberl, S Master, & WU Reimold (2005), Estimating duration and intensity of Neoproterozoic snowball glaciations from Ir anomalies. Science 308: 239-242.

Bottjer, DJ, JW Hagadorn & SQ Dornbos (2000), The Cambrian substrate revolution. GSA Today 10: 1-7.

Caldeira, K & JF Kasting (1992), Susceptibility of the early Earth to irreversible glaciation caused by CO₂ clouds. Nature 359: 226-228.

Canfield, DE & R Raiswell (1999), The evolution of the sulfur cycle. Amer. J. Sci.  299: 697-723.

Chakraborty, PP, A Sarkar, SK Bhattacharya & P Sanyal (2002), Isotopic and sedimentological clues to productivity change in Late Riphean sea: A case study from two intracratonic basins of India. Proc. Indian Acad. Sci. 111: 379-390.

Corsetti, FA & AJ Kaufman (1999), At least three carbon isotope excursions/glaciations in the Neoproterozoic: Carbon isotope chemostratigraphy of Neoproterozoic-Cambrian strata, southern Great Basin, USA. Ninth Annual V.M. Goldschmidt Conference. (abstr.)

Corsetti, FA, SM Awramik & D Pierce (2003), A complex microbiota from snowball Earth times: Microfossils from the Neoproterozoic Kingston Peak Formation, Death Valley, USA. Proc. Nat. Acad. Sci. USA 100: 4399-4404.

Christie-Blick, N, LE Sohl & MJ Kennedy (1999), Considering a Neoproterozoic Snowball Earth. Science 284: 1087a.

Davidson, EH, K Peterson & RA Cameron (1995), Origin of the adult bilaterian body plans: Evolution of developmental regulatory mechanisms. Science 270: 1319-1325.

Davis, SR & DM Wilkinson 2004), The conservation management value of testate amoebae as ‘restoration’ indicators: speculations based on two damaged raised mires in northwest England. The Holocene 14: 135-143.

Dornbos, SQ, DJ Bottjer & J-Y Chen (2004), Evidence for seafloor microbial mats and associated metazoan lifestyles in Lower Cambrian phosphorites of Southwest China. Lethaia 37: 127-137.

Dornbos, SQ, DJ Bottjer & J-Y Chen (2005), Paleoecology of benthic metazoans in the Early Cambrian Maotianshan Shale biota and the Middle Cambrian Burgess Shale biota: Evidence for the Cambrian substrate revolution. Palaeogeog. Palaeoclimat. Palaeoecol. 220: 47– 67.

Eiler, JM & N Kitchen (1999), Experimental study of the stable-isotope systematics of CO₂ ice/vapor systems and relevance to the study of Mars. Lunar Plant. Sci. 30: 1309.

Embleton, BJJ & GE Williams (1986), Low paleolatitude of deposition for Late Precambrian periglacial varvites in South Australia – Implications for paleoclimatology. Earth Planet. Sci. Let. 79: 419-430.

Erwin, DH & EH Davidson (2002), The last common bilaterian ancestor. Development 129: 3021-3032.

Frimmel, HE (2004), Neoproterozoic sedimentation rates and timing of glaciations -- a southern African perspective in PG Eriksson, W Altermann, DR Nelson, WU Mueller & O Catuneanu [eds.], The Precambrian Earth: Tempos and Events.  Elsevier.

Frimmel, HE & PG Fölling, (2004), Late Vendian closure of the Adamastor Ocean: Timing of tectonic inversion and syn-orogenic sedimentation in the Gariep Basin. Gond. Res. 7: 685-699.  Folling

Goodman, JC & RT Pierrehumbert (2003), Glacial flow of floating marine ice in "Snowball Earth". J. Geophys. Res. 108: 3308.

Gould, SJ (1989), Wonderful Life. Penguin, 347 pp.

Hagadorn, JW (1998), Restriction of a Late Neoproterozoic biotope: Ediacaran faunas, microbial structures, and trace fossils from the Proterozoic-Phanerozoic transition, Great Basin, USA. Unpub. Ph.D. thesis, Univ. So'ern. Calif., 214 pp.

Halverson, GP, PF Hoffman, DP Schrag & AJ Kaufman (2002), A major perturbation of the carbon cycle before the Ghaub glaciation (Neoproterozoic) in Namibia: Prelude to snowball Earth?  Geochem. Geophys. Geosys. 3(6), 10.1029/ 2001GC000244.

Hambrey, MJ & WB Harland (1981), Earth’s Pre-Pleistocene Glacial Record. Cambridge.

Harland, WB (1964), Critical evidence for a great Infra-Cambrian glaciation. Geol. Rundsch. 54: 45–61.

Harland, WB & MJS Rudwick (1964), The Great Infra-Cambrian Ice Age. Scientific American, August 1964: 28-36.

Hoffman, PF & DP Schrag (1999), Considering a Neoproterozoic Snowball Earth -- Response. Science 284: 1087a.  

Hoffman, PF & DP Schrag (2000), Snowball Earth. Scientific American, January 2000, pp. 68-75.

Hoffman, PF & DP Schrag (2002), The Snowball Earth hypothesis: Testing the limits of global change. Terra Nova 14, 129–155.

Hoffman, PF, AJ Kaufman, GP Halverson, & DP Schrag (1998), A Neoproterozoic Snowball Earth. Science 281: 1342.

Holland, HD (2003), The Geologic History of Seawater, in HD Holland & KK Turekian [eds.], Treatise on Geochemistry Elsevier, 6: 583-625.  

Huntley, JW, S-H Xiao, & M Kowalewski (2006), 1.3 Billion years of acritarch history: An empirical morphospace approach. Precambrian Res. 144: 52–68. 

Hyde, W, TJ Crowley, SK Baum & WR Peltier (2000), Neoproterozoic ‘Snowball Earth’ simulations with a coupled climate/ice-sheet model. Nature 405: 425–429.

Kah, LC, TW Lyons & TD Frank (2004), Low marine sulphate and protracted oxygenation of the Proterozoic biosphere. Nature 431: 834-838.

Kaufman, AJ, AH Knoll & GM Narbonne (1997), Isotopes, ice ages, and terminal Proterozoic earth history. Proc. Natl. Acad. Sci. USA 94: 6600-6605.

Kennedy, MJ, N Christie-Blick & LE Sohl (2001), Are Proterozoic cap carbonates and isotopic excursions a record of gas hydrate destabilization following Earth's coldest intervals?  Geology 29: 443-446. 

Kilner, B, C Mac Niocaill & M Brasier (2005), Low-latitude glaciation in the Neoproterozoic of Oman. Geology 433: 413-416. 

Kirschvink, JL (1992), Late Proterozoic low-latitude global glaciation: the Snowball Earth, in JW Schopf & C Klein [eds.] The Proterozoic Biosphere – A Multidisciplinary Study. Cambridge, pp. 51-52.

Kirschvink, JL (2002), Quand tous les Océans étaient gelés. La Recherche 355: 26-30.

Kirschvink, JL, EJ Gaidos, LE Bertani, NJ Beukes, J Gutzmer, LN Maepa, & RE Steinberger (2000), Paleoproterozoic snowball Earth: Extreme climatic and geochemical global change and its biological consequences. Proc. Nat. Acad. Sci. USA 97: 1400-1405.

Knoll, AH (1994), Proterozoic and Early Cambrian protists: Evidence for accelerating evolutionary tempo. Proc. Nat. Acad. Sci. (USA) 91: 6743-6750.

Knoll, AH (2000), Learning to tell Neoproterozoic time. Precam. Res. 100: 3-20.

Knoll, AH & SB Carroll (1999), Early animal evolution: Emerging views from comparative biology and geology. Science 284: 2129-2137.

Knoll, AH, M Walter, G Narbonne & N Christie-Blick, (2000), The Ediacaran Period: A New Addition to the Geologic Time Scale., Unpubl. Report of the Terminal Proterozoic Subcommission of the International Commission on Stratigraphy.  35 pp. (including dissenting comments) WWW(accessed 050831).

Martin, MW, DV Grazhdankin, SA Bowring, DAD Evans, MA Fedonkin, & JL Kirschvink (2000), Age of Neoproterozoic bilaterian body and trace fossils, White Sea, Russia: Implications for metazoan evolution. Science 288: 841-845.

Mayr, E (2001), What Evolution Is. Weidenfeld & Nicolson, 318 pp.

McMechan, ME (2000), Vreeland diamictites – Neoproterozoic glaciogenic slope deposits, Rocky Mountains, northeast British Columbia. Bul. Can. Pet. Geol. 48: 246-261.

Narbonne, GM (1998), The Ediacara biota: A terminal Proterozoic experiment in the evolution of life. GSA Today 8(2): 1-6.

Olcott, AN, AL Sessions, FA Corsetti, AJ Kaufman, & T Flavio de Oliviera (2005), Biomarker evidence for photosynthesis during Neoproterozoic glaciation. Science 310: 471-474.

Peterson, KJ & EH Davidson (2000), Regulatory evolution and the origins of the bilaterians. Proc. Nat. Acad. Sci. USA 97: 4430-4433.

Pierrehumbert, RT (2004), High levels of atmospheric carbon dioxide necessary for the termination of global glaciation. Nature 429: 646-649.

Pollard, D & JF Kasting 2005), Snowball Earth: A thin-ice solution with flowing sea glaciers. J. Geophy. Res. 110: C07010.

Porter, SM (2004), The fossil record of early eukaryote diversification. Pal. Soc. Papers 10: 35-50.

Porter, SM & AH Knoll (2000), Testate amoebae in the Neoproterozoic Era: Evidence from vase-shaped microfossils in the Chuar Group, Grand Canyon. Paleobiology 26: 360–385.

Poulson, CJ & RL Jacob 2004), Factors that inhibit snowball Earth simulation. Paleoceonography 19: PA4021.

Poulson, CJ, RT Pierrehumbert & RL Jacob (2001), Impact of ocean dynamics on the simulation of the Neoproterozoic "snowball Earth". Geophys. Res. Lett. 28: 1575-1578.

Rahn, T & JM Eiler (2000), Carbon isotope fractionation associated with adsorption of CO₂ on mineral substrates and its relevance to the study of Mars. Lunar Planet. Sci. 31: 1933.

Rice, HN, GP Halverson & PF Hoffman (2003), Three for the Neoproterozoic: Sturtian, Marinoan and Varangerian glaciations. EGS – AGU – EUG Jt. Assem., Nice. (abstr.).

Runnegar, BN (2000), Loophole for Snowball Earth. Nature 405: 403-404.

Sankaran, AV (1999), New explanation of the geological evolution of the Indian subcontinent. Curr. Sci. 77: 331-333.

Schrag, DP, RA Berner, PF Hoffman & GP Halverson (2002), On the initiation of a snowball Earth. Geochem. Geophys. Geosys. 6: 10.1029/2001GC000219.

Schröder, S, BC Schreiber, JE Amthor, & A Matter (2004), Stratigraphy and environmental conditions of the terminal Neoproterozoic-Cambrian Period in Oman: Evidence from sulphur isotopes. J. Geol. Soc. 161: 489-499.

Socki, RA, EK Gibson, Jr., DC Golden, DW Ming, GA McKay (2003), Kinetic fractionation of stable isotopes in carbonates on Mars: Terrestrial analogs.  Lunar & Planet. Sci. 34: 1938.

Sumner, DY & JP Grotzinger (2004), Implications for Neoarchaean ocean chemistry from primary carbonate mineralogy of the Campbellrand-Malmani Platform, South Africa. Sedimentology 51: 1–27.

Sumner, DY, JL Kirschvink & BN Runnegar (1987), Soft-sediment paleomagnetic field tests of Late Precambrian glaciogenic sediments. EOS, Trans. Am. Geophys. Union 68: 1251 (abstr.).

Vanyo, JP & SM Awramik (1982), Length of day and obliquity of the ecliptic 850 MA ago: Preliminary results of a stromatolite growth model. Geophy. Res. Let. 9: 1124-1128.

Vanyo, JP & SM Awramik (1985), Stromatolites and Earth-Moon-Sun dynamics. Precam. Res., 29: 121-142.

Vanyo, JP, RA Hutchinson & SM Awramik (1986) Heliotropism in microbial stromatolitic growths at Yellowstone National Park: Geophysical inferences. EOS, Trans. Am. Geophys. Union 67: 153-156 (abstr.).

Vidal, G (1981), Aspects of problematic acid-resistant, organic-walled microfossils (acritarchs) in the Upper Proterozoic of the North Atlantic region. Precam. Res. 15: 9-23.

Walker, G (2003), Snowball Earth. Bloomsbury, 269 pp.

Williams, GE (1975), Late Precambrian glacial climate and the Earth's obliquity. Geol. Mag. 112: 441-465.

Ziegler, AM, ML Hulver, AL Lottes & WF Schmachtenberg (1984), Uniformitarianism and paleoclimates: Inferences from the distribution of carbonate rocks, in P Brenchley [ed.], Fossils and Climate. Wiley, pp. 3–27.