This biozone's age, according to conodonts, was Guadalupian
William studied the movement of ground water in Permian Guadalupian
aquifer systems in southeastern New Mexico and western Texas.
Lower Middle Guadalupian
Facies, Stratigraphy, and Reservoir Geometries, San Andres/Grayburg Formations.
Dixon (1967) reviewed the problem of Alibates correlation and stated that the Quartermaster and Alibates could be either Guadalupian
units A and B were from the Guadalupian
age, C-D from the Dzulfian age, E transitional stages, F a Paratirolites horizon with early Triassic age and H and G introduced the Elika Formation in to the section being studied.
With the north oriented drift of Laurasia, Europe suffered tropical conditions as early as the Guadalupian
and until the PTBI.
Leonardian and Guadalupian
(Permian) conodont biostratigraphy in western and south-western United States.
Clarkina crofti appears to exhibit a high potential for the correlation of the post-Lamar/pre-Castile level of the Guadalupian
type area with deepwater deposits of Tethys origin.
Footprints, the Rabejac Fm + the Salagou Fm (till the "la Lieude") would be dated between the Late Sakmarian (Middle Cisuralian) to the Lower Guadalupian
(= Wordian/Roadien) (Gand and Durand, 2006).
The division of the Permian into three series approved in the International Geological Congress in Florence (2004): The Lower or Cisuralian defined in Russia, the Middle or Guadalupian
defined in the USA and the Upper or Lopingian defined in China.
The other three ages of Permian, the Sakmarian, the Leonardian and the Guadalupian
show variable results, with high values in some ages, while in others the values are low or even zero.
in the Toulon area) made up of playa deposits, yields vertebrate tracks of Guadalupian
age (Gand and Durand, 2006).