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lepidosauromorpha vs archosauromorpha

[7][3], The humerus (forearm bone) is solid in archosauromorphs, completely lacking a hole near the elbow known as the entepicondylar foramen. However, there was little consensus on ancient reptile relationships prior to the late 20th century, so the term Archosauromorpha was seldom used until many years after its creation. Lee, in 2013. Lepidosauromorphs are distinguishable from Archosauromorphs (archosaurs) by their primitive sprawling gait, which allows for the same sinusoidal trunk and tail movement seen in fish, the sliding "joint" between the coracoids and the sternum (for a longer stride), and their pleurodont dentition. Other notable genera include Boreopricea, Pamelaria, and Macrocnemus, as well as strange gliding reptiles such as Sharovipteryx and Mecistotrachelos. He argued that Prolacerta was much closer to Archosauriformes than to other "prolacertiforms", invalidating the name. [2], For an explanation of very similar terms, see, "The phylogenetic relationships of basal archosauromorphs, with an emphasis on the systematics of proterosuchian archosauriforms", "The Origin and Early Evolution of Sauria: Reassessing the Permian Saurian Fossil Record and the Timing of the Crocodile-Lizard Divergence", "Amniote phylogeny and the importance of fossils", "Classification and phylogeny of the diapsid reptiles", "The early history and relationships of the Diapsida", "A bird-like skull in a Triassic diapsid reptile increases heterogeneity of the morphological and phylogenetic radiation of Diapsida", "An archosaur-like laterosphenoid in early turtles (Reptilia: Pantestudines)",, Creative Commons Attribution-ShareAlike License. Gauthier used the name "Trilophosauria" for this group, but a 2015 study offered an alternative name. This bone is roughly L-shaped in these taxa, with a tall dorsal process (vertical branch), a short anterior process (forward branch), and a tiny or absent posterior process (rear branch). Species similar to or like Archosauromorpha. [2], The cladogram shown below follows the most likely result found by an analysis of turtle relationships using both fossil and genetic evidence by M.S. The Lepidosauromorphs are one of the two major groups or clades of diapsids that evolved from earlier Permo-Carbiniferous ancestors, the other being the Archosauromorphs. These two groups did not survive the end of the Triassic period, but the most famous group of archosauromorphs not only survived, but have continued to diversify and dominate beyond the Triassic-Jurassic extinction. The term Archosauromorpha was first used by Friedrich von Huene in 1946 to refer to reptiles more closely related to archosaurs than to lepidosaurs. .mw-parser-output table.clade{border-spacing:0;margin:0;font-size:100%;line-height:100%;border-collapse:separate;width:auto}.mw-parser-output table.clade table.clade{width:100%;line-height:inherit}.mw-parser-output table.clade td.clade-label{width:0.7em;padding:0 0.15em;vertical-align:bottom;text-align:center;border-left:1px solid;border-bottom:1px solid;white-space:nowrap}.mw-parser-output table.clade td.clade-fixed-width{overflow:hidden;text-overflow:ellipsis}.mw-parser-output table.clade td.clade-fixed-width:hover{overflow:visible}.mw-parser-output table.clade td.clade-label.first{border-left:none;border-right:none}.mw-parser-output table.clade td.clade-label.reverse{border-left:none;border-right:1px solid}.mw-parser-output table.clade td.clade-slabel{padding:0 0.15em;vertical-align:top;text-align:center;border-left:1px solid;white-space:nowrap}.mw-parser-output table.clade td.clade-slabel:hover{overflow:visible}.mw-parser-output table.clade td.clade-slabel.last{border-left:none;border-right:none}.mw-parser-output table.clade td.clade-slabel.reverse{border-left:none;border-right:1px solid}.mw-parser-output table.clade td.clade-bar{vertical-align:middle;text-align:left;padding:0 0.5em;position:relative}.mw-parser-output table.clade td.clade-bar.reverse{text-align:right;position:relative}.mw-parser-output table.clade td.clade-leaf{border:0;padding:0;text-align:left}.mw-parser-output table.clade td.clade-leafR{border:0;padding:0;text-align:right}.mw-parser-output table.clade td.clade-leaf.reverse{text-align:right}.mw-parser-output table.clade:hover span.linkA{background-color:yellow}.mw-parser-output table.clade:hover span.linkB{background-color:green}, The following cladogram is based on a large analysis of archosauriforms published by M.D. [14], Although the most diverse clade of living archosauromorphs are birds, early members of the group were evidently reptilian, superficially similar to modern lizards. (Schuppenkriechtiere) umfassen. An introduction to the phylogenetic taxonomy of Archosauromorpha Traditionally, Archosauria included crocodiles, birds, dinosaurs, pterosaurs, and a large number of related taxa classed as "thecodonts." Innerhalb Lepidosauromorpha gibt es ausgestorbene Gruppen wie Sauropterygios, darunter Meeresreptilien wie Mosasaurus, ... Daher gibt es in Archosauromorpha eine der unglaublichsten Entwicklungen und Veränderungen in einer Reihe von Tieren, die die Erde fast 200 Millionen Jahre lang dominierten. Archosauromorpha is similar to these species: Reptile, Archosaur, Lepidosauromorpha and more. [6], In conjunction with their long, S-shaped necks, early archosauromorphs had several adaptations of the cervical (neck) vertebrae, and usually the first few dorsal (back) vertebrae as well.

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