Stratigraphic column of the (A) Kuh-e-Ali Bashi 1 and (B) Zal sections. Lithological column and stratigraphic position of δ34SCRS (diamond), δ34SCAS (circle), and δ18OCAS (circle). Conodont zones: a, C. bachmanni; b, C. nodosa; other zones follow from C. (C) Characteristic Late Permian–Early Triassic conodonts from the Julfa region. (Scale bars, 100 μm.) All specimens are stored in the collection of the Ferdowsi University of Mashhad (overview in refs. 26 and 71); c, Clarkina yini, FUM# G258-6, Ali Bashi Formation, Main Valley section, upper view; d, Clarkina abadehensis abadehensis, FUM# 1J248-6, Ali Bashi Formation, Ali Bashi 1 section, upper view; e, Clarkina hauschkei, FUM# 1J249D-9, Ali Bashi Formation, Ali Bashi 1 section, upper view; f, Hindeodus praeparvus, FUM# G274-6, Elikah Formation, Main Valley section, lateral view; g, Hindeodus changxingensis, FUM# 1J252-11, Elikah Formation, Ali Bashi 1 section, lateral view; h, Stepanovites ?mostleri, M element, FUM# 1J253-16, Elikah Formation, Ali Bashi 1 section, lateral view; i, Merrillina ultima, Pa element, FUM# 4J203-7, Elikah Formation, Ali Bashi 4 section, lateral view’ j-1, Hindeodus parvus, FUM# G278-17, Elikah Formation, Main Valley section, lateral view; j-2, Hindeodus parvus, FUM# AJ206-2, Elikah Formation, Aras Valley section, lateral view; k-1, Hindeodus lobata, FUM# 4J217-5, Elikah Formation, Ali Bashi 4 section, upper view; k-2, Hindeodus lobata, FUM# 1J265-4, Elikah Formation, Ali Bashi 1 section, lateral view; i-1, Isarcicella staeschei, FUM# 1J270-4, Elikah Formation, Ali Bashi 1 section, lateral view; i-2, Isarcicella staeschei, FUM# 4J222-7, Elikah Formation, Ali Bashi 4 section, upper view; j-1, Isarcicella isarcica, FUM# 1J281-1, Elikah Formation, Ali Bashi 1 section, upper view; and j-2, Isarcicella isarcica, FUM# 4J225-4, Elikah Formation, Ali Bashi 4 section, upper view.