 "Limnoscelis paludis" was found in these lower beds, suggesting that it might have been restricted to a similar age.However, dating of these lower beds to the late Pennsylvanian was initially found to be dubious based on inconsistencies with the stratigraphic placement of the fossils used for biostratigraphy.An early Permian age again fell into favor, based on faunal similarities with the Arroyo del Agua beds of the Cutler Formation.