Changhsingien: verschil tussen versies

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*{{en}}{{aut|Gradstein, F.M.; Ogg, J.G. & Smith, A.G.}}; 2004: ''A Geologic Time Scale 2004'', [[Cambridge University]] Press
*{{en}}{{aut|Brack, P.; Rieber, H.; Nicora, A. & Mundil, R.}}; 2005: ''The Global boundary Stratotype Section and Point (GSSP) of the Ladinian Stage (Middle Triassic) at Bagolino (Southern Alps, Northern Italy) and its implications for the Triassic time scale.'', Episodes '''28(4)''', p. 233-244, [ PDF].</ref>
*{{en}}{{aut|Jin, Y.; Wang, Y.; Henderson, C.; Wardlaw, B.R.; Shen, S. & Cao, C.}}; 2006: ''The Global Boundary Stratotype Section and Point (GSSP) for the base of Changhsingian Stage (Upper Permian)'' Episodes '''29(3)''', p. 175-182, [ PDF].