Data for: Clade-dependent conodont-size responses to environmental changes during the end-Smithian extinction
9234 P1 elements (3855 from Salt Range, 2632 from Tulong and 2747 from Guryul Ravine) were measured for this study. Broken elements with incomplete length were excluded from into the analysis. Maximal length (L) and maximal width (W) were measured for segminiplanate forms. Maximal length (L) and maximal height (H) were measured for segminate forms. Elements with broken denticles were included in the study where the highest point of the broken elements were taken as the maximum height (H). This negligible random error only affected the segminate forms (as the platform width was measured in segminiplanate forms). Conodont elements were measured from high resolution optical microscope images by means of the software ImageJ 1.50e with a precision of ±0.01mm. For ellisonids, only the length (L) was measured from complete and broken P1 and S elements.