A Late Triassic Invertebrate Ichnofauna from Ghost Ranch,New Mexico |
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| Authors: | Lynett Gillette S George Pemberton William Sarjeant |
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| Institution: | 1. Ghost Ranch Conference Center, Abiquiu, New Mexico, USA;2. Ichnology Research Group, Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada;3. Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada |
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| Abstract: | Invertebrate trace fossils are reported from the Late Triassic Chinle Formation at Ghost Ranch, New Mexico, for the first time. They occur in beds higher in the section than the Coelophysis Quarry. Six ichnotaxa are recognized: Steinichnus milfordensis, Planolites montanus, Palaeophycus tubularis, Taenidium serpentium, ?Arenicolites sp. and Skolithos sp. This ichnofauna is consistent with the Scoyenia ichnofacies, considered typical of lake margins in semiarid to arid regions. |
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| Keywords: | Triassic Chinle formation Ghost Ranch Coelophysis Quarry invertebrate traces Steinichnus Planolites Palaeophycus Taenidium Arenicolites Scoyenia |
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