EARLY MISSISSIPPIAN NON-DISSEPIMENTED SOLITARY RUGOSE CORALS FROM NORTHERN XINJIANG

The Early Mississippian strata in Barkol that is located in the east margins of the Junggar Basin, and Toli and Hoboksar counties that are located in the west margins of the Basin, north Xinjiang are characterized by the occurrences of relatively deep-water black shale and bioclastic micrite limestone, yielding abundant pelagic ammonoids, conodonts and benthic bra-chiopods, bryozoans, gastropods, bivalves, tabulate corals, non-dissepimented solitary rugose corals, and spores, etc. Ac-cording to the assemblages of ammonoids and conodonts, the strata is undoubtedly of Early Mississippian in age, within the Tournaisian Stage of the international chronostratigraphic chart. The rugose corals from four different Early Mississippian outcrops of north Xinjiang are investigated in this study, and they belong to eight species of eight different genera, including two new species and an undetermined genus and species.

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