Marine environment and fauna at Hot House Earth during the Early Triassic

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The stratigraphy and fossil assemblages of the Lower Triassic in South Primorye, Russia reveals that the habitable environment for marine organisms was not resided below the storm wave base because of the influence of marine anoxia extending offshore bottom. The foresight of the dissolving anoxia is recognized at earliest Spathian. Because ammonoids, crinoids and bivalves were diversified during the Spathian, this oceanic recovery would lead the restructuring of marine organisms.