Sweetognathus whitei (Rhodes), lateral view, X80, middle Permian (Guadalupian
In addition to these, a fourth taxon, Nyctiphruretus acudens Efremov 1938, a parareptile found in the Mezen River basin of Russia, Upper Permian (Guadalupian
) (Ivakhnenko 1990), has been considered a member of the Order Procolophonomorpha, Family Nyctiphruretidae and understood to be the most basal of the Russian 'procolophons' (Bulanov, 2002; Ivakhnenko, 1979, 1987, 1990; Tverdokhlebova and Ivakhnenko, 1994).
William studied the movement of ground water in Permian Guadalupian
aquifer systems in southeastern New Mexico and western Texas.
1986, eds., Lower Middle Guadalupian
Facies, Stratigraphy, and Reservoir Geometries, San Andres/Grayburg Formations.
Distribution, petrography and geochemistry of early dolomite in cyclic shelf facies, Yates Formation (Guadalupian
), Captain Reef Complex, USA.
In the study area, the Alibates is underlain by red beds of the Permian (Guadalupian
) Whitehorse Formation, and at most places is unconformably overlain by the Permian (Ochoan?) Quartermaster Formation, a red-bed interval very similar to the Whitehorse.
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).
(1992): The Guadalupian
: proposed international standard for a middle Permian series.