2023
DOI: 10.1002/ar.25128
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Reconstruction of the pectoral girdle and forelimb musculature of Megaraptora (Dinosauria: Theropoda)

Abstract: Megaraptora is a group of enigmatic, carnivorous non‐avian theropod dinosaurs from the Cretaceous of Asia, Australia, and especially South America. Perhaps the most striking aspect of megaraptoran morphology is the large, robustly constructed forelimb that, in derived members of the clade, terminates in a greatly enlarged manus with hypertrophied, raptorial unguals on the medialmost two digits and a substantially smaller ungual on digit III. The unique forelimb anatomy of megaraptorans was presumably associate… Show more

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Cited by 5 publications
(6 citation statements)
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References 53 publications
(352 reference statements)
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“…3B, C). In tandem with the medial surface of the deltopectoral crest, this area has been interpreted as the insertion of the M. coracobrachialis in other nonavian theropods [84][85][86][87][88]. The anteriormost end of the deltopectoral crest has a vaguely 'D-shaped' contour, with the medial rim convex and the lateral rim slightly concave; moreover, this end of the crest curves laterally (Fig.…”
Section: Descriptionmentioning
confidence: 99%
“…3B, C). In tandem with the medial surface of the deltopectoral crest, this area has been interpreted as the insertion of the M. coracobrachialis in other nonavian theropods [84][85][86][87][88]. The anteriormost end of the deltopectoral crest has a vaguely 'D-shaped' contour, with the medial rim convex and the lateral rim slightly concave; moreover, this end of the crest curves laterally (Fig.…”
Section: Descriptionmentioning
confidence: 99%
“…Rather, to name just some, they span a glorious gamut: from detailed descriptions of unusual Therapods from New Jersey (really? hadrosaurs, Jimmy Hoffa…who knew Jersey was actually interesting; sorry, JL is a native New Yorker and has little control when commenting on New Jersey; Gallagher, 2023); reports on a new iguanodontian dinosaur from South Africa (Forster et al, 2023); new insights on evolutionary relationships from analyses of the hyolaryngeal apparatus in extant archosaurs (i.e., birds and crocodilians; Yoshida et al, 2023); new reconstructions of the pectoral girdle and forelimb musculature of Megaraptora (Rolando et al, 2023); insights from osteohistology of Dromornis stironi with implications for understanding the histology of Australian mihirung birds (Chinsamy et al, 2023); insightful observations on fracture and disease in a large‐bodied ornithomimosaur with insights into identifying unusual endosteal bone in the fossil record (Chinzorig et al, 2023); a comprehensive assessment of the history and future of the study of morphometrics in the study on non‐avian dinosaurs (Hedrick, 2023); detailed modeling to assess and predict the abundance of large carnivorous dinosaurs of the Upper Jurassic Morrison Formation and the Upper Cretaceous Dinosaur Park formation (by Peter and JL's Yale classmate, the ever‐creative James Farlow; JL is still in awe at all the super‐bright dino dudes that surrounded him at Yale “back in the day”; Farlow et al, 2023); to a number of papers—naturally—on Peter's great love, the ceratopsians, including those by lead Guest Editor Fiorillo (Fiorillo & Tykoski, 2023) and Peter's successor teaching anatomy at Penn, Ali Nabavizadeh (Nabavizadeh, 2023). Even the cover of this Special Issue has been a creative homage to Peter, lovingly created by Anatomical Record Associate Editor (and artist extraordinaire) Adam Hartstone‐Rose (Hartstone‐Rose et al, 2023).…”
Section: Figurementioning
confidence: 99%
“…Aranciaga Rolando et al (2023) studied the paleobiological significance of the unique forelimb anatomy of megaraptorans. They note that as the muscle attachment sites on megaraptoran forelimb bones are well developed, the muscles themselves were functionally significant and important to the paleobiology of these theropods (Aranciaga Rolando et al, 2023).…”
mentioning
confidence: 99%
“…Aranciaga Rolando et al (2023) studied the paleobiological significance of the unique forelimb anatomy of megaraptorans. They note that as the muscle attachment sites on megaraptoran forelimb bones are well developed, the muscles themselves were functionally significant and important to the paleobiology of these theropods (Aranciaga Rolando et al, 2023). They conclude from their study that megaraptorans possessed a morphologically and functionally specialized forelimb that was capable of complex movements that were attributes that aided in prey capture (Aranciaga Rolando et al, 2023).…”
mentioning
confidence: 99%
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