International Union of Geological Sciences

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Rocha RBD, Mattioli E, Duarte LV, Pittet B, Elmi S, Mouterde R, Cabral MC, Rengifo MJC, Gómez JJ, Goy A, Hesselbo SP, Jenkyns HC, Littler K, Mailliot S, Oliveira LCVD, Osete ML, Perilli N, Pinto S, Ruget C, Suan G.  Base of the Toarcian Stage of the Lower Jurassic defined by the Global Boundary Stratotype Section and Point (GSSP) at the Peniche section (Portugal).  Episodes 2016;39:460-481.