The braincase of<i>Giganotosaurus carolinii</i>(Dinosauria: Theropoda) from the Upper Cretaceous of Argentina

Coria, Rodolfo A.; Currie, Philip J.

doi:10.1671/0272-4634(2002)022[0802:tbogcd]2.0.co;2

Cited by 134 publications

(347 citation statements)

References 13 publications

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“…Both peduncles are similar in size, as in other theropods, but possess prominent pegs that would have lodged into sockets in the pubis and ischium. Similar pegs are also known in abelisaurids, and an ischial peg-and-socket articulation is present in the carcharodontosaurids Giganotosaurus (personal observation) and Mapusaurus (Coria and Currie, 2006).…”

Section: Pelvic Girdlementioning

confidence: 75%

New materials of Masiakasaurus knopfleri Sampson, Carrano, and Forster, 2001, and implications for the morphology of the Noasauridae (Theropoda:Ceratosauria)

Carrano¹,

Loewen²,

Sertich³

2011

Smithsonian Contributions to Paleobiology

169

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Section: Pelvic Girdlementioning

confidence: 75%

New materials of Masiakasaurus knopfleri Sampson, Carrano, and Forster, 2001, and implications for the morphology of the Noasauridae (Theropoda:Ceratosauria)

Carrano¹,

Loewen²,

Sertich³

2011

Smithsonian Contributions to Paleobiology

169

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“…3e). This furrow demarcates a rugose crest confluent with the caudal aspect of the ischial shaft as in Sinraptor 23 and Mapusaurus 25 . As in other carcharodontosaurians 19 , the ilio-ischial articulation is formed as a peg and socket joint (Fig.…”

Section: Systematic Palaeontologymentioning

confidence: 93%

Neovenatorid theropods are apex predators in the Late Cretaceous of North America

Zanno

Makovicky

2013

Nat Commun

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Allosauroid theropods were a diverse and widespread radiation of Jurassic-Cretaceous megapredators. Achieving some of the largest body sizes among theropod dinosaurs, these colossal hunters dominated terrestrial ecosystems until a faunal turnover redefined apex predator guild occupancy during the final 20 million years of the Cretaceous. Here we describe a giant new species of allosauroid -Siats meekerorum gen. et sp. nov. -providing the first evidence for the cosmopolitan clade Neovenatoridae in North America. Siats is the youngest allosauroid yet discovered from the continent and demonstrates that the clade endured there into the Late Cretaceous. The discovery provides new evidence for ecologic sympatry of large allosauroids and small-bodied tyrannosauroids. These data support the hypothesis that extinction of Allosauroidea in terrestrial ecosystems of North America permitted ecological release of tyrannosauroids, which went on to dominate end-Cretaceous food webs.

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“…CT scans indicate the absence of a suture, but a series of breaks pervade the bone obscuring finer details. Parietal fusion occurs in various basal theropods (Coria and Currie, 2002;Brusatte and Sereno, 2007), oviraptorosaurs (Clark et al, 2002;Balanoff et al, 2009), and troodontids (Makovicky and Norell, 2004). The main body of the parietal, forming a large part of the caudal skull roof, is approximately horizontal and dorsoventrally flat.…”

Section: Parietalmentioning

confidence: 99%

Cranial anatomy ofErlikosaurus andrewsi(Dinosauria, Therizinosauria): new insights based on digital reconstruction

Lautenschlager

Witmer

Altangerel

et al. 2014

Journal of Vertebrate Paleontology

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ABSTRACT-The skull of Erlikosaurus andrewsi from the Upper Cretaceous Baishin Tsav locality of Mongolia represents the only known three-dimensionally preserved and nearly complete skull of a therizinosaurian. Computed tomographic (CT) scanning of the original specimen and three-dimensional visualization techniques allow the cranial skeleton to be digitally prepared, disarticulated, and restored. Here, we present a detailed description of the restored skull morphology and the individual cranial elements, including visualization of the internal neurovascular and pneumatic structures. Information gained from this study is used in a revised and emended diagnosis for E. andrewsi. A reappraisal of the evolutionary and functional changes in the cranial skeleton as provided by this study supports prior proposals that a keratinous sheath or rhamphotheca was developed early in the evolution of Therizinosauria. Paralleled by the reduction of functional and replacement teeth, this development indicates a shift in the manner of food processing/procurement at the tip of the snout.

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The braincase ofGiganotosaurus carolinii(Dinosauria: Theropoda) from the Upper Cretaceous of Argentina

Cited by 134 publications

References 13 publications

New materials of Masiakasaurus knopfleri Sampson, Carrano, and Forster, 2001, and implications for the morphology of the Noasauridae (Theropoda:Ceratosauria)

New materials of Masiakasaurus knopfleri Sampson, Carrano, and Forster, 2001, and implications for the morphology of the Noasauridae (Theropoda:Ceratosauria)

Neovenatorid theropods are apex predators in the Late Cretaceous of North America

Cranial anatomy ofErlikosaurus andrewsi(Dinosauria, Therizinosauria): new insights based on digital reconstruction

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