A new rauisuchian reptile (diapsida: archosauria) from the Late Triassic of Poland

Sulej, Tomasz

doi:10.1671/0272-4634(2005)025[0078:anrrda]2.0.co;2

Cited by 57 publications

(59 citation statements)

References 14 publications

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“…Much of this confusion stems from attempts to pigeonhole taxa, especially basal crurotarsans, into discrete groups without reference to cladistic analysis (e.g. Alcober 2000;Sen 2005;Sulej 2005). However, several authors have named new taxa based on cladistic analyses, which has saturated the literature with names that refer to poorlysupported clades that may not be found in alternative studies (Gower & Wilkinson 1996).…”

Section: Resultsmentioning

confidence: 99%

“…The past several years have witnessed the discovery of numerous new basal archosaurs (e.g. Gower 1999;Dzik 2003;Sen 2005;Sulej 2005;Li et al 2006;Nesbitt & Norell 2006;Ferigolo & Langer 2007;, the discovery of important new material of previously-known taxa (e.g. Alcober 2000; Nesbitt 2003Nesbitt , 2005Parker et al 2005;, and the reinterpretation and re-description of taxa (e.g.…”

Section: Introductionmentioning

confidence: 99%

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The higher-level phylogeny of Archosauria (Tetrapoda: Diapsida)

Brusatte

Benton

Desojo

et al. 2010

Journal of Systematic Palaeontology

217

318

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Crown group Archosauria, which includes birds, dinosaurs, crocodylomorphs, and several extinct Mesozoic groups, is a primary division of the vertebrate tree of life. However, the higher-level phylogenetic relationships within Archosauria are poorly resolved and controversial, despite years of study. The phylogeny of crocodile-line archosaurs (Crurotarsi) is particularly contentious, and has been plagued by problematic taxon and character sampling. Recent discoveries and renewed focus on archosaur anatomy enable the compilation of a new dataset, which assimilates and standardizes character data pertinent to higher-level archosaur phylogeny, and is scored across the largest group of taxa yet analysed. This dataset includes 47 new characters (25% of total) and eight taxa that have yet to be included in an analysis, and total taxonomic sampling is more than twice that of any previous study. This analysis produces a well-resolved phylogeny, which recovers mostly traditional relationships within Avemetatarsalia, places Phytosauria as a basal crurotarsan clade, finds a close relationship between Aetosauria and Crocodylomorpha, and recovers a monophyletic Rauisuchia comprised of two major subclades. Support values are low, suggesting rampant homoplasy and missing data within Archosauria, but the phylogeny is highly congruent with stratigraphy. Comparison with alternative analyses identifies numerous scoring differences, but indicates that character sampling is the main source of incongruence. The phylogeny implies major missing lineages in the Early Triassic and may support a Carnian-Norian extinction event.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The higher-level phylogeny of Archosauria (Tetrapoda: Diapsida)

Brusatte

Benton

Desojo

et al. 2010

Journal of Systematic Palaeontology

217

318

View full text Add to dashboard Cite

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“…The number of new ''rauisuchian'' taxa dramatically increased in the last 10 years and includes the following taxa: Batrachotomus (Gower, 1999(Gower, , 2002Gower and Schoch, 2009); Effigia Nesbitt, 2007); Polonosuchus silesiacus (Sulej, 2005, sensu Brusatte et al, 2009); Qianosuchus (Li et al, 2006); Postosuchus alisonae (Peyer et al, 2008); Arganasuchus (Jalil and Peyer, 2007); and Yarasuchus (Sen, 2005). Furthermore, new, more complete specimens of the following important specimens have been found: Poposaurus (Weinbaum and Hungerbü hler, 2007); Saurosuchus (Alcober, 2000); and Arizonasaurus (Nesbitt, 2003(Nesbitt, , 2005a.…”

Section: Rauisuchiansmentioning

confidence: 99%

“…Skull reconstructions of ''rauisuchian'' archosaur terminal taxa: A, Rauisuchus triradentes in lateral view; based on (BSP AS XXV-60-121); B, Polonosuchus silesiacus in lateral view; redrawn from Sulej (2005); C, Postosuchus kirkpatricki in lateral view; modified from Chatterjee (1985); D, Saurosuchus galilei in lateral and E, dorsal views; redrawn from Alcober (2000); F, Batrachotomus kuperferzellensis in lateral and G, dorsal views; redrawn from Gower (1999). Shaded areas indicate incomplete preservation.…”

Section: Sillosuchus Longicervixmentioning

confidence: 99%

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The Early Evolution of Archosaurs: Relationships and the Origin of Major Clades

Nesbitt

2011

Bulletin of the American Museum of Natural History

728

2,561

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Osteology of the Late Triassic Bipedal Archosaur Poposaurus gracilis (Archosauria: Pseudosuchia) from Western North America

Schachner

Irmis

Huttenlocker

et al. 2019

The Anatomical Record

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Poposaurus gracilis is a bipedal pseudosuchian archosaur that has been poorly understood since the discovery of the holotype fragmentary partial postcranial skeleton in 1915. Poposaurus. gracilis is a member of Poposauroidea, an unusually morphologically divergent clade of pseudosuchians containing taxa that are bipedal, quadrupedal, toothed, edentulous, and some individuals with elongated thoracic neural spines (i.e., sails). In 2003, a well preserved, fully articulated, and nearly complete postcranial skeleton of P. gracilis was discovered with some fragmentary cranial elements from the Upper Triassic Chinle Formation of Grand Staircase‐Escalante National Monument of southern Utah, USA. The aim of this work is to describe the osteology of this specimen in detail and compare P. gracilis to other closely related pseudosuchian archosaurs. The open neurocentral sutures throughout the majority of the vertebral column, the small size of this individual, and the presence of seven evenly spaced cyclic growth marks in the histologically sectioned femur indicate that this specimen was a skeletally immature juvenile, or subadult when it died. The pes of P. gracilis contains multiple skeletal adaptations and osteological correlates for soft tissue structures that support a hypothesis of digitigrady for this taxon. When coupled with the numerous postcranial characters associated with cursoriality, and the many anatomical traits convergent with theropod dinosaurs, this animal likely occupied a similar ecological niche with contemporaneous theropods during the Late Triassic Period. Anat Rec, 303:874–917, 2020. © 2019 American Association for Anatomy

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A new rauisuchian reptile (diapsida: archosauria) from the Late Triassic of Poland

Cited by 57 publications

References 14 publications

The higher-level phylogeny of Archosauria (Tetrapoda: Diapsida)

The higher-level phylogeny of Archosauria (Tetrapoda: Diapsida)

The Early Evolution of Archosaurs: Relationships and the Origin of Major Clades

Osteology of the Late Triassic Bipedal Archosaur Poposaurus gracilis (Archosauria: Pseudosuchia) from Western North America

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