Induan

EtymologyName formalityFormalUsage informationCelestial bodyEarthRegional usageGlobal (ICS)Time scale(s) usedICS Time ScaleDefinitionChronological unitAgeStratigraphic unitStageTime span formalityFormalLower boundary definitionFAD of the ConodontHindeodus parvusLower boundary GSSPMeishan, Zhejiang, China
31°04′47″N119°42′21″E / 31.0798°N 119.7058°E / 31.0798; 119.7058Lower GSSP ratified2001Upper boundary definitionNot formally definedUpper boundary definition candidatesFAD of the Conodont Neospathodus waageniUpper boundary GSSP candidate section(s)Mud (Muth) village, Spiti valley, India

The Induan is the first age of the Early Triassicepoch in the geologic timescale, or the lowest stage of the Lower Triassicseries in chronostratigraphy. It spans the time between 251.902 Ma and 249.9 Ma (million years ago). The Induan is sometimes divided into the Griesbachian and the Dienerian subages or substages. The Induan is preceded by the Changhsingian (latest Permian) and is followed by the Olenekian.

The Induan is roughly coeval with the regional Stage of China.