Supplemental Material: Calibrating the Early Cretaceous Urho Pterosaur Fauna in Junggar Basin and implications for the evolution of the Jehol Biota

Supplemental Text S1: Stratigraphic information, U-Pb geochronology by LA-MC-ICP-MS, and U-Pb geochronology by CA-ID-TIMS. Figure S1: Cathodoluminescent images of zircons from sample W-1 with youngest ages analyzed by LA-MC-ICP-MS U-Pb dating. Figure S2: Rank order plot of LA-MC-ICP-MS U-Pb ages for youngest zircon subpopulations from sample W-1. Table S1: Vertebrate and trace fossils from the Tugulu Group of Junggar Basin. Table S2: LA-MC-ICP-MS U-Pb analytical results for standard zircons and sample W-1. Table S3: CA-ID-TIMS U-Pb analytical results for sample W-1.