2006
DOI: 10.1590/s0031-10492006000100001
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Abstract: The origin of avian endothermy is a long-held question the answer of which cannot be provided by first level observations. Oological and reproductive characters have collectively provided a new source of data useful for phylogenetic analyses and paleobiological inferences. In addition, the observations of reproductive and oological evolutionary trends in saurischian dinosaurs lead to the interpretation that not only, the thermophysiology of these dinosaurs progressively became more avian-like but after re-exam… Show more

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Cited by 12 publications
(18 citation statements)
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References 30 publications
(54 reference statements)
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“…Nevertheless, these two new examples differ from previous paleontological cases because of their (1) close or cross-cutting relationship of the clutches, (2) precise overlay of clutch atop clutch, and (3) implications for nest reuse. Troodontid nesting, incorporating iterative laying and brooding (Varricchio et al, 1997(Varricchio et al, , 2013Grellet-Tinner, 2006), would have differed markedly from that of sauropodomorphs or hadrosaurs with buried clutches (Deeming, 2006) and may have required adults to remain at the nesting site for potentially two months or more (Varricchio et al, 2002). Consequently, other factors may have influenced site fidelity in the case of troodontids.…”
Section: Discussionmentioning
confidence: 99%
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“…Nevertheless, these two new examples differ from previous paleontological cases because of their (1) close or cross-cutting relationship of the clutches, (2) precise overlay of clutch atop clutch, and (3) implications for nest reuse. Troodontid nesting, incorporating iterative laying and brooding (Varricchio et al, 1997(Varricchio et al, , 2013Grellet-Tinner, 2006), would have differed markedly from that of sauropodomorphs or hadrosaurs with buried clutches (Deeming, 2006) and may have required adults to remain at the nesting site for potentially two months or more (Varricchio et al, 2002). Consequently, other factors may have influenced site fidelity in the case of troodontids.…”
Section: Discussionmentioning
confidence: 99%
“…The two specimens date to approximately 95 and 75 Ma He et al, 2013) and preserve two closely superimposed clutches of the egg form Prismatoolithus. These eggs belong to the Troodontidae (Varricchio et al, 2002;Grellet-Tinner, 2006;Erickson et al, 2007;Bever and Norell, 2009), a group of small theropod dinosaurs sharing a close, possibly sister-taxon relationship with Aves (Godefroit et al, 2013). The eggs from Zhejiang represent an unnamed oospecies of Prismatoolithus, measure only 100 mm in length and belong to an unknown troodontid (Zhao, 2003).…”
Section: Review Of Dinosaur Site Fidelitymentioning
confidence: 99%
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“…see Norell et al 1995;Dong and Currie 1996;Varricchio et al 1999;Grellet-Tinner 2006;. In regard to the alleged Deinonychus gastralia and eggshell association, GrelletTinner (2001) proposed that an avian methodology of egg brooding was an ancestral character for the Maniraptora and thus would be expected in the Dromaeosauridae.…”
Section: Te Isles 182mentioning
confidence: 99%
“…Dinosaurian metabolic physiology has been a controversial topic (Russell 1965;Ostrom 1970;Bakker 1971Bakker , 1972Spotila et al 1973;Thomas and Olson 1980;Weaver 1983;Farlow 1990;Paladino et al 1990;Paul 1991Paul , 1994Paul , 1998Paul , 2001Barrick and Showers 1994Farlow et al 1995;Ruben 1995;Barrick et al 1996;Ruben et al 1996;Reid 1997;Horner et al 1999Horner et al , 2000O'Connor and Dodson 1999;Seebacher et al 1999;Fricke and Rogers 2000;Seymour and Lillywhite 2000;Burness et al 2001;Jones and Ruben 2001;Schweitzer and Marshall 2001;McNab 2002McNab , 2009bShowers et al 2002;Seebacher 2003;Chinsamy and Hillenius 2004;Hillenius and Ruben 2004a;Padian and Horner 2004;Seymour et al 2004;Chinsamy-Turan 2005;Amiot et al 2006;Gillooly et al 2006;Grellet-Tinner 2006;Sander and Andrassy 2006;…”
Section: Herbivorous Dinosaur Metabolic Requirementsmentioning
confidence: 99%