The first animals: Ca. 760-million-year-old sponge-like fossils from Namibia

South African Journal of Science

Volumn 108, Issue 1-2, 2012, Pages

  Brain, C K Bob ^a   Prave, Anthony R ^b   Hoffmann, Karl Heinz ^c   Fallick, Anthony E ^d   Botha, Andre ^e   Herd, Donald A ^b   Sturrock, Craig ^f   Young, Iain ^g   Condon, Daniel J ^h   Allison, Stuart G ^b  

^a Northern Flagship Institution   (South Africa)

^b UNIVERSITY OF ST ANDREWS   (United Kingdom)

^c GEOLOGICAL SURVEY OF NAMIBIA   (Namibia)

^d SCOTTISH UNIVERSITIES ENVIRONMENTAL RESEARCH CENTRE   (United Kingdom)

^e UNIVERSITY OF PRETORIA   (South Africa)

^f UNIVERSITY OF NOTTINGHAM   (United Kingdom)

^g UNIVERSITY OF NEW ENGLAND   (Australia)

^h NATURAL ENVIRONMENT RESEARCH COUNCIL   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

AGE DETERMINATION; BIOMARKER; BIOSPHERE; BURIAL (GEOLOGY); CARBON ISOTOPE; CLIMATE VARIATION; EDIACARAN; FOSSIL RECORD; OXYGEN; PALEONTOLOGY; SPONGE;

NAMIBIA;

ANIMALIA;

EID: 84856039444     PISSN: 00382353     EISSN: 19967489     Source Type: Journal    
DOI: 10.4102/sajs.v108i1/2.658     Document Type: Article

References (34)

1. Xiao S, Zhang Y, Knoll AH. Three-dimensional preservation of algae and animal embryos in a Neoproterozoic phosphorite. Nature. 1998;391(6667):553-558. http://dx.doi.org/10.1038/35318 (Pubitemid 28157589)
2. Hagadorn JW, Xiao S, Donoghue PCJ, et al. Cellular and subcellular structure of Neoproterozoic animal embryos. Science. 2006;314(5797):291-294. http://dx.doi.org/10.1126/science.1133129, PMid:17038620 (Pubitemid 44571972)
3. Yin L, Zhu M, Knoll AH, Yuan X, Zhang J, Hu J. Doushantuo embryos preserved inside diapause egg cysts. Nature. 2007;446(7136):661-663. http://dx.doi.org/10.1038/nature05682, PMid:17410174 (Pubitemid 46606885)
4. Narbonne GM. The Ediacara biota: Neoproterozoic origin of animals and their ecosystems. Ann Rev Earth Planet Sci. 2005;33:421-442. http://dx.doi.org/10.1146/annurev.earth.33.092203.122519 (Pubitemid 40849791)
5. Jensen S, Gehling JG, Droser ML. Ediacaran-type fossils in Cambrian sediments. Nature. 1998;393(6685):567-569. http://dx.doi. org/10.1038/31215
6. Grotzinger J, Watters W, Knoll AH. Calcified metazoans in thrombolitestromatolite reefs of the terminal Proterozoic Nama Group, Namibia. Paleobiology. 2000;26(3):334-359. http://dx.doi.org/10.1666/0094-8373(2000)0262. 0.CO;2
7. Amthor JE, Grotzinger JP, Schroeder S, et al. Extinction of Cloudina and Namacalathus at the Precambrian-Cambrian boundary in Oman. Geology. 2003;31(5):431-434. http://dx.doi.org/10.1130/0091-7613(2003)0312.0.CO;2 (Pubitemid 36659065)
8. Grotzinger JP, Bowring SA, Saylor BZ, Kaufman AJ. Biostratigraphic and geochronologic constraints on early animal evolution. Science. 1995;270(5236):598-604. http://dx.doi.org/10.1126/science.270.5236.598 (Pubitemid 26449752)
9. Martin MW, Grazhdankin DV, Bowring SA, Evans DAD, Fedonkin MA, Kirschvink JL. Age of Neoproterozoic bilatarian body and trace fossils, White Sea, Russia: Implications for metazoan evolution. Science. 2000;288(5467):841-845. http://dx.doi.org/10.1126/science.288.5467.841, PMid:10797002 (Pubitemid 30257728)
10. Condon DJ, Maoyan Z, Bowring SA, Wei W, Aihua Y, Yugan J. U-Pb ages from the Neoproterozoic Doushantuo Formation, China. Science. 2005;308(5718):95-98. http://dx.doi.org/10.1126/science.1107765, PMid:15731406
11. Seilacher S, Bose PK, Pflueger F. Triploblastic animals more than 1 billion years ago: Trace fossil evidence from India. Science. 1998;281(5386);80-83. http://dx.doi.org/10.1126/science.282.5386.80, PMid:9756480 (Pubitemid 28471130)
12. Rasmussen B, Bengston S, Fletcher IR, McNaughton NJ. Discoidal impressions and trace-like fossils more than 1200 million years old. Science. 2002;296(5570);1112-1115. http://dx.doi.org/10.1126/science.1070166, PMid:12004128 (Pubitemid 34517126)
13. Doolittle RF, Feng DF, Tsang S, Cho G, Little E. Determining divergence times of major kingdoms of living organisms with a protein clock. Science. 1996;271(5248);470-477. http://dx.doi.org/10.1126/science.271.5248.470, PMid:8560259
14. Wray GA, Levinton JS, Shapiro LH. Molecular evidence for deep Precambrian divergence among metazoan phyla. Science. 1996;274(5287):568-573. http://dx.doi.org/10.1126/science.274.5287.568 (Pubitemid 27162355)
15. Peterson KJ, Butterfield NJ. Origin of the Eumetazoa: Testing ecological predictions of molecular clocks against the Proterozoic fossil record. Proc Natl Acad Sci USA. 2005;102(27):9547-9552. http://dx.doi.org/10.1073/ pnas.0503660102, PMid:15983372, PMCid:1172262 (Pubitemid 40981718)
16. Maloof AC, Rose CV, Beach R, et al. Possible animal-body fossils in pre- Marinoan limestones from South Australia. Nat Geosci. 2010;3(9):653-659. http://dx.doi.org/10.1038/ngeo934
17. Li CW, Chen JY, Hua TE. Precambrian sponges with cellular structures. Science. 1998;279(5352):879-882. http://dx.doi.org/10.1126/ science.279.5352. 879, PMid:9452391
18. Brasier MD, Green O, Shields G. Ediacaran sponge spicule clusters from southwestern Mongolia and the origins of the Cambrian fauna. Geology. 1997;25(4):303-306. http://dx.doi.org/10.1130/0091- 7613(1997)0252.3.CO;2
19. Gehling JG, Rigby JK. Long expected sponges from the Neoproterozoic Ediacara fauna of South Australia. J Palaeont. 1996;70(2):185-195.
20. Wood RA, Grotzinger JP, Dickson JAD. Proterozoic modular biomineralized metazoan from the Nama Group, Namibia. Science. 2002;296(5577):2383-386. http://dx.doi.org/10.1126/science.1071599, PMid:12089440 (Pubitemid 34734210)
21. Love GD, Grosjean E, Stalvies C, et al. Fossil steroids record the appearance of Demospongiae during the Cryogenian. Nature. 2009;457(7230):718- 723. http://dx.doi.org/10.1038/nature07673, PMid:19194449
22. Halverson GP, Hoffman PF, Schrag DP, Maloof AC, Rice AHN. Toward a Neoproterozoic composite carbon-isotope record. Geol Soc Amer Bull. 2005;117(9):1181-1207. http://dx.doi.org/10.1130/B25630.1 (Pubitemid 41269236)
23. Knauth LP, Kennedy MJ. The late Precambrian greening of the Earth. Nature. 2009;460(7256):728-732. PMid:19587681
24. Derry LA. A burial diagenesis origin for the Ediacaran Shuram-Wonoka carbon isotope anomaly. Earth Planet Sci Lett. 2010;294(1-2):152-162. http://dx.doi.org/10.1016/j.epsl.2010.03.022
25. Brain CK, Hoffmann K-H, Prave AR, Fallick AE, Coetzee J, Botha AJ. Interpretive problems in a search for micro-invertebrate fossils from a Neoproterozoic limestone in Namibia. Palaeontologia Africana. 2001;37(1- 12):1-12. (Pubitemid 34191470)
26. Aitchison J, Brown JAC. The lognormal distribution. Cambridge: Cambridge University Press; 1957.
27. Fallick AE, Pillinger CT, Stephenson A, Housley RM. Concerning the size distribution of ultrafine iron in lunar soil. Abstracts of papers presented to the Fourteenth Lunar and Planetary Science Conference. 1983;14:185-186.
28. Javaux EJ, Marshall CP, Bekker A. Organic walled microfossils in 3.2 billion year old shallow-marine siliciclastic deposits. Nature. 2010;463(7283):934-938.http://dx.doi.org/10.1038/nature08793, PMid:20139963
29. Hoffmann K-H, Condon DJ, Bowring SA, Crowley JL. U-Pb zircon date from the Neoproterozoic Ghaub Formation, Namibia: Constraints on Marinoan glaciation. Geology. 2004;32(9):817-820. http://dx.doi. org/10.1130/G20519.1 (Pubitemid 39316147)
30. Bosak T, Lahr DJG, Pruss SB, Macdonald FM, Dalton L, Matys E. Agglutinated tests in post-Sturtian cap carbonates of Namibia and Mongolia. Earth Planet Sci Lett. 2011;308(1-2):29-40. http://dx.doi. org/10.1016/j.epsl. 2011.05.030
31. Rothman DH, Hayes JM, Summons RE. Dynamics of the Neoproterozoic carbon cycle. Proc Nat Acad Sci USA. 2003;100(14):8124-8129. http:// dx.doi.org/10.1073/pnas.0832439100, PMid:12824461, PMCid:166193 (Pubitemid 36842509)
32. Hoffman PF, Schrag DP. The snowball Earth hypothesis; testing the limits of global change. Terra Nova. 2002;14(3):129-155. http://dx.doi. org/10.1046/j.1365-3121.2002.00408.x (Pubitemid 34696275)
33. Fike DA, Grotzinger JP, Pratt LM, Summons RE. Oxidation of the Ediacaran Ocean. Nature. 2006;444(7120):744-747. http://dx.doi.org/10.1038/ nature05345, PMid:17151665 (Pubitemid 44949601)
34. Canfield DE, Poulton SW, Narbonne GM. Late-Neoproterozoic deep-ocean oxygenation and the rise of animal life. Science. 2007;315(5808):92-95. http://dx.doi.org/10.1126/science.1135013, PMid:17158290 (Pubitemid 46196985)