The vertebrate fauna, biostratigraphy and biocrhonology of the type Revultian land vertebrate faunachron, Bull Canyon Formation (Upper Triassic), east-central New Mexico
Adrian P. Hunt

Abstract:

The Bull Canyon Formation of east-central New Mexico contains a large vertebrate fauna that is the type fauna of the Revueltian land-vertebrate faunachron. The Bull Canyon vertebrate fauna includes ?Colobodontidae indet., Redfieldiidae indet., Semionotus cf, S. brauni, ?Tanaocrossus kalhkoski, Actinoptery gii indet., ?Arganodontidae indet., Quayia zideki, Apachesaurus gregorii, Metoposauridae indet. (large), ?Squamata indet., Rhynchosauridae indet., Vancleavia campi, Pseudopalatus pristinus, P. andersoni, P. n. sp., Typothorax coccinarum, Aetosaurus arcuatus, Stagonolepididae ?gen. et sp. nov., Paratypothorax sp., Desmatosuchus n. sp., Postosuchus kirkpatricki, Shuvosaurus inexpectatus, Sphenosuchidae indet., Crocodylotarsi gen. et sp. nov., Herrerasauridae gen. et sp. nov. (2), Gojirasaurus quayi, Theropoda gen. et sp. nov., Revuehosaurus callenderi, Lucianosaurus wildi and Pseudotriconodon chatterjeei. The Revueltian can be divided into a lower RI (Barrancan) defined by the FAD of Pseudopalatus and R2 (Lucianoan) defined by the FAD of Lucianosaurus. There is possibly an RO (Rainbowforestan) interval which has the co-occurrence of Typothorax and Nicrosaurus prior to the FAD of Pseudopalatus. The Revueltian represents most of Norian time.


Citation:

  1. Hunt, Adrian P., 2001, The vertebrate fauna, biostratigraphy and biocrhonology of the type Revultian land vertebrate faunachron, Bull Canyon Formation (Upper Triassic), east-central New Mexico, in: Geology of the Llano Estacado, Lucas, Spencer G.; Ulmer-Scholle, Dana S., New Mexico Geological Society, Guidebook, 52nd Field Conference, pp. 123-151.

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