PRELIMINARY REPORT ON COPROLITES FROM THE LATE TRIASSIC OF THAILAND

169 coprolites were found at Huai Nam Aun in Chaiyaphum province (Huai Hin Lat Formation, Upper Triassic) and are sub-divided into seven different morphotypes. Four groups of spiral coprolites are interpreted as being produced by fish-eating sharks and lungfish, whereas non-spiral coprolites containing numerous bone fragments and fish scales were probably produced by other carnivorous vertebrates. Liassocopros hawkinsi and Saurocopros bucklandi are recognized in this study for the first time in Southeast Asia; this discovery supports palynological studies suggesting a Carnian-Norian age for the Huai Hin Lat Formation.

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