Tournaisian

clarifying te supposed "debate" with Per Ahlberg.

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• published: 10 Sep 2009
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Hey, Evidence free. you say you cite your sources. If that's a fact, why don't you do this: Per Ahlberg's research paper: Per Erik Ahlberg1, Jennifer A. Clack2 & Henning Blom1,2,Vol 437|1 September 2005|doi:10.1038/nature03893 other sources (all given by Per Ahlberg's paper) 1. Jarvik, E. On the fish-like tail in the ichthyostegid stegocephalians. Meddelelser øm Grønland 114, 1-90 (1952). 2. Jarvik, E. The oldest tetrapods and their forerunners. Sci. Mon. 80, 141-154 (1955). 3. Jarvik, E. Basic Structure and Evolution of Vertebrates Vol. 1 (Academic, New York, 1980). 4. Coates, M. I. The Devonian tetrapod Acanthostega gunnari Jarvik: postcranial anatomy, basal tetrapod relationships and patterns of skeletal evolution. Trans. R. Soc. Edinb. Earth Sci. 87, 363-421 (1996). 5. Jarvik, E. The Devonian tetrapod Ichthyostega. Fossils and Strata 40, 1-206 (1996). 6. Coates, M. I. & Clack, J. A. in Studies on Early Vertebrates (eds Arsenault, M., Lelie`vre, H. & Janvier, P.) 373-388 (Bulletin du Muse´um national dhistoire naturelle, Paris, 1995). 7. Coates, M. I. & Clack, J. A. Polydactyly in the earliest known tetrapod limbs. Nature 347, 66-69 (1990). 8. Clack, J. A., Blom, H. & Ahlberg, P. E. New insights into the postcranial skeleton of Ichthyostega. J. Vert. Paleontol. Abstr. 23, 41A (2003). 9. Blom, H., Clack, J. A. & Ahlberg, P. E. Localities, distribution and stratigraphical context of the Late Devonian tetrapods of East Greenland. Meddelelser øm Grønland Geosci. 43, 4-50 (2005). 10. Clack, J. A. et al. A uniquely specialised ear in a very early tetrapod. Nature 425, 65-69 (2003). 11. Clack, J. A. An early tetrapod from Romers Gap. Nature 418, 72-76 (2002). 12. Lombard, R. E. & Bolt, J. R. A new primitive tetrapod, Whatcheeria deltae, from the Lower Carboniferous of Iowa. Palaeontology 38, 471-494 (1995). 13. Clack, J. A. & Finney, S. M. Pederpes finneyae, an articulated tetrapod from the Tournaisian of western Scotland. J. Syst. Palaeontol. 2, 311-346 (2005). 14. Ruta, M., Coates, M. I. & Quicke, D. L. J. Early tetrapod relationships revisited. Biol. Rev. 78, 251-345 (2003). 15. Holmes, R. The Carboniferous amphibian Proterogyrinus scheeli Romer, and the early evolution of tetrapods. Phil. Trans. R. Soc. Lond. B 306, 431-524 (1984). 16. Clack, J. A. The dermal skull roof of Acanthostega, an early tetrapod from the Late Devonian. Trans. R. Soc. Edinb. 93, 17-33 (2002). Internet Infidels: http://www.freeratio.org//forumdisplay.php?f=66 the source said he went by "IronOne" EDIT: the actual thread this all ocurred in: http://www.freeratio.org/thearchives/showthread.php?t=200704