Information om | Engelska ordet ARCHOSAURIFORMS

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• Fossils of Euparkeria, including nearly complete skeletons, have been recovered from the Cynognathus Assemblage Zone (CAZ, also known as the Burgersdorp Formation), which hosts the oldest advanced archosauriforms in the fossil-rich Karoo Basin.
• However, the last therocephalians became extinct by the early Middle Triassic, possibly due to climate change, along with competition with cynodonts and various groups of reptiles — mostly archosaurs and their close relatives, including archosauromorphs and archosauriforms.
• A subnarial fenestra is present in a few other more derived archosauriforms such as some dinosaurs and pseudosuchians, but its morphology in Shansisuchus is unique.
• The teeth of Proterosuchus were recurved, labiolingually compressed, and serrated, as in most archosauriforms.
• The skull of Doswellia lacks several bones found in other archosauriforms, including the postfrontals, tabulars, and postparietals.
• Once believed to be a proterosuchid, this taxon is now believed to have been intermediate between advanced non-archosauriform archosauromorphs such as Prolacerta, and basal archosauriforms such as Proterosuchus.
• Although the presence of interdental plates in QM F8998 made Ezcurra consider Kalisuchus to be more advanced than proterosuchids, the large number of tooth sockets (14) preserved in the maxilla forced Kalisuchus to be excluded from the clade containing more advanced archosauriforms, such as the erythrosuchids.
• While most other early archosauriforms walked on four limbs, euparkeriids were probably facultative bipeds that had the ability to walk on their hind limbs at times.
• Vancleavea lacks certain traits which are present in most other archosauriforms, most notably the antorbital, mandibular and supratemporal fenestrae, which are weight-saving holes in the skulls of other taxa.
• Tawas paleoenvironment included various archosauriforms such as crocodylomorphs, "rauisuchians", phytosaurs, and dinosauriforms like Dromomeron, Chindesaurus, Eucoelophysis, and possibly Coelophysis.
• They are known from hundreds of sites throughout eastern Europe and preserve a wide array of temnospondyls (primarily trematosaurids), procolophonids, and early archosauriforms.
• Koilamasuchus is considered more derived than proterosuchids and other early archosauriforms because it possesses an iliac preacetabular process, or a bony projection near the acetabulum (part of the hip joint).
• Erythrosuchids are basal archosauriforms that are closely related to Archosauria, the group that includes living crocodiles and birds.
• thumbTrotteyn and Haro (2012) conducted a phylogenetic analysis of proterochampsians and other basal archosauriforms using only braincase characters, and found Doswellia, an unusual long-necked, heavily armored archosauriform from Virginia, to nest within Proterochampsia.
• Fossils have been found in the Vokhminskaya Formation, along the Vetluga River that are Induan in age, making Vonhuenia one of the earliest archosauriforms.
• While Erpetosuchus and Parringtonia had unserrated and only slightly mediolaterally compressed teeth, Tarjadia had thin and serrated teeth more similar to other carnivorous archosauriforms.
• Prolacertids are considered to be archosauromorphs within the clade Crocopoda, along with the allokotosaurs, rhynchosaurs, and archosauriforms.
• In more precise analyses which exclude incomplete or problematic taxa such as Prolacertoides, this polytomy was resolved, with Allokotosauria forming a clade with more advanced archosauromorphs (such as rhynchosaurs and archosauriforms), and Tanystropheidae forming a more basal clade with Jesairosaurus.
• It has several features that place it outside Archosauria with non-archosaurian archosauriforms, including the lack of an antorbital fossa and the possible presence of a postparietal bone at the back of the skull, which is not found in archosaurs.
• The parietal bones surround a small pineal foramen ("third eye"), a feature absent in most archosauriforms but sometimes found in the proterosuchid archosauriform Proterosuchus.

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