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Georgenthalia clavinasica, A New Genus and Species of Dissorophoid Temnospondyl from the Early Permian of Germany, and the Relationships of the Family Amphibamidae
TLDR
Several features support a highly terrestrial habitus of G. clavinasica, which is consistent with the interpretation of the fossiliferous beds of the Bromacker quarry as representing an upland terrestrial environment in which limnic conditions were characterized by ephemeral lakes and ponds.
A late-surviving basal theropod dinosaur from the latest Triassic of North America
TLDR
Various features of the skull of Daemonosaurus, including the procumbent dentary and premaxillary teeth and greatly enlarged premaxilla and anterior maxillary teeth, clearly set this taxon apart from coeval neotheropods and demonstrate unexpected disparity in cranial shape among theropod dinosaurs just prior to the end of the Triassic.
REDESCRIPTION OF SEYMOURIA SANJUANENSIS (SEYMOURIAMORPHA) FROM THE LOWER PERMIAN OF GERMANY BASED ON COMPLETE, MATURE SPECIMENS WITH A DISCUSSION OF PALEOECOLOGY OF THE BROMACKER LOCALITY ASSEMBLAGE
Abstract Two nearly complete, articulated, mature specimens of the amphibian Seymouria are described from the Lower Permian Tambach Formation, lowermost unit of the Upper Rotliegend, of the Bromacker
The cranial anatomy and relationships of Secodontosaurus, an unusual mammal-like reptile (Synapsida: Sphenacodontidae) from the early Permian of Texas
The cranial anatomy of the Early Permian sphenacodontid synapsid Secodontosaurus is redescribed. There is no evidence for recognition of more than one species of Secodontosaurus, and S. willistoni is
A new species of Dimetrodon (Synapsida: Sphenacodontidae) from the Lower Permian of Germany records first occurrence of genus outside of North America
TLDR
This first record of the sphenacodontid synapsid Dimetrodon outside of North America provides not only additional biological evidence of a continuous Euramerican landmass during the Early Permian, but also the absence of any major physical or biological barrier to faunal interchange of terrestrial vertebrates.
FIRST WELL-ESTABLISHED TRACK-TRACKMAKER ASSOCIATION OF PALEOZOIC TETRAPODS BASED ON ICHNIOTHERIUM TRACKWAYS AND DIADECTID SKELETONS FROM THE LOWER PERMIAN OF GERMANY
Abstract As a single stratigraphic source and site of high-fidelity vertebrate trackways and superbly preserved skeletons, the Lower Permian Tambach Formation, lowermost unit of the Upper Rotliegend,
A NEW SPECIMEN OF HESPEROSUCHUS AGILIS FROM THE UPPER TRIASSIC OF NEW MEXICO AND THE INTERRELATIONSHIPS OF BASAL CROCODYLOMORPH ARCHOSAURS
TLDR
An articulated partial skeleton of a crocodylomorph reptile from the Upper Triassic Chinle Formation of Ghost Ranch, New Mexico, is referable to Hesperosuchus agilis Colbert, 1952, and contributes much new information on the skeletal structure of this previously poorly known taxon.
The anatomy and relationships of the Lower Permian reptile Araeoscelis
TLDR
A combination of primitive and derived characters shared by Araeooscelis and Petrolacosaurus justifies their inclusion in the suborder Araeoscelidia as members of separate families and indicates that they represent the earliest, most primitive known stage in the adaptive radiation of the diapsid reptiles.
ORIGIN AND EARLY EVOLUTION OF THE AMNIOTE OCCIPUT
TLDR
A phylogenetic study of major groups of Paleozoic tetrapods based on the occiput and closely associated elements of the skull roof finds that the Anthracosauria and Baphetidae are progressively more distant clades or sister taxa.
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