Bone histology of Azendohsaurus laaroussii: Implications for the evolution of thermometabolism in ArchosauromorphaJORGE CUBO AND NOUR-EDDINE JALILORIGIN OF ENDOTHERMY IN ARCHOSAUROMORPHA

Published on May 1, 2019in Paleobiology2.354
· DOI :10.1017/pab.2019.13
Jorge Cubo23
Estimated H-index: 23
(University of Paris),
Nour-Eddine Jalil3
Estimated H-index: 3
(University of Paris)
  • References (50)
  • Citations (1)
#1Donald Davesne (University of Oxford)H-Index: 4
#2François J. Meunier (University of Paris)H-Index: 21
Last. Olga Otero (University of Poitiers)H-Index: 17
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Endothermy, production and retention of heat by the body, appeared convergently in mammals, birds and four spiny-rayed teleost fish lineages. Of these, red-muscle endothermy over most or all of the...
3 CitationsSource
#1Corinna V. Fleischle (University of Bonn)H-Index: 1
#2Tanja Wintrich (University of Bonn)H-Index: 3
Last. P Martinsander (University of Bonn)H-Index: 32
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4 CitationsSource
#1Julia NowackH-Index: 12
#2Sylvain GiroudH-Index: 13
Last. Thomas RufH-Index: 36
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The development of sustained, long-term endothermy was one of the major transitions in the evolution of vertebrates. Thermogenesis in endotherms does not only occur via shivering or activity, but also via non-shivering thermogenesis (NST). Mammalian NST is mediated by the uncoupling protein 1 in the brown adipose tissue (BAT) and possibly involves an additional mechanism of NST in skeletal muscle. This alternative mechanism is based on Ca2+-slippage by a sarcoplasmatic reticulum Ca2+-ATPase (SER...
12 CitationsSource
#1Vivien P. Jaquier (UZH: University of Zurich)H-Index: 1
#2Torsten M. Scheyer (UZH: University of Zurich)H-Index: 24
SUPPLEMENTAL DATASupplemental materials are available for this article for free at for this article: Jaquier, V. P., and T. M. Scheyer. 2017. Bone histology of the Middle Triassic long-necked reptiles Tanystropheus and Macrocnemus (Archosauromorpha, Protorosauria). Journal of Vertebrate Paleontology. DOI: 10.1080/02724634.2017.1296456.
1 CitationsSource
#1Jorge Cubo (University of Paris)H-Index: 23
#2Mylaine Hui (University of Paris)H-Index: 1
Last. Alexandra Quilhac (University of Paris)H-Index: 6
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Two successive mechanisms have been described in perichondral ossification: (1) in static osteogenesis, mesenchymal cells differentiate into stationary osteoblasts oriented randomly, which differentiate into osteocytes in the same site; (2) in dynamic osteogenesis, mesenchymal cells differentiate into osteoblasts that are all oriented in the same direction and move back as they secrete collagen fibers. This study is aimed at testing the hypothesis that the ontogenetic sequence static then dynami...
3 CitationsSource
#1Torsten M. Scheyer (UZH: University of Zurich)H-Index: 24
#2Hans-Dieter Sues (National Museum of Natural History)H-Index: 37
Citation for this article: Scheyer, T. M., and H.-D. Sues. 2016. Expanded dorsal ribs in the Late Triassic pseudosuchian reptile Euscolosuchus olseni. Journal of Vertebrate Paleontology. DOI: 10.1080/02724634.2017.1248768.
1 CitationsSource
#1Lucas J. Legendre (UPMC: Pierre-and-Marie-Curie University)H-Index: 6
#2GuénardGuillaume (UdeM: Université de Montréal)H-Index: 8
Last. Jorge Cubo (UPMC: Pierre-and-Marie-Curie University)H-Index: 23
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Metabolic heat production in archosaurs has played an important role in their evolutionary radiation during the Mesozoic, and their ancestral metabolic condition has long been a matter of debate in systematics and palaeontology. The study of fossil bone histology provides crucial information on bone growth rate, which has been used to indirectly investigate the evolution of thermometabolism in archosaurs. However, no quantitative estimation of metabolic rate has ever been performed on fossils us...
29 CitationsSource
#1Martín D. Ezcurra (University of Birmingham)H-Index: 23
The early evolution of archosauromorphs during the Permo-Triassic constitutes an excellent empirical case study to shed light on evolutionary radiations in deep time and the timing and processes of recovery of terrestrial faunas after a mass extinction. However, macroevolutionary studies of early archosauromorphs are currently limited by poor knowledge of their phylogenetic relationships. In particular, one of the main early archosauromorph groups that need an exhaustive phylogenetic study is "P...
67 CitationsSource
#1Sarah Werning (SBU: Stony Brook University)H-Index: 8
#2Sterling J. Nesbitt (VT: Virginia Tech)H-Index: 31
Abstract The bone histology of non-archosauriform archosauromorphs is understudied but is important for tracing the evolution of growth in archosaurs and their closest relatives. Here, we describe the femoral and tibial histology of a single individual of Stenaulorhynchus stockleyi, a Middle Triassic rhynchosaur from Tanzania. Both elements are composed largely of moderately vascularized parallel-fibered bone tissue, which becomes avascular and more lamellar approaching the periosteum. The spaci...
8 CitationsSource
#1Sterling J. Nesbitt (VT: Virginia Tech)H-Index: 31
#2John J. Flynn (AMNH: American Museum of Natural History)H-Index: 38
Last. André R. Wyss (UCSB: University of California, Santa Barbara)H-Index: 31
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ABSTRACT During the Triassic, archosauromorphs became one of the first groups of diapsid reptiles to diversify in terms of body size and morphological disparity in both terrestrial and marine ecosystems across Pangaea. This seemingly rapid divergence, and the numerous unique body plans stemming from it, concomitantly has confounded reconstructions of archosauromorph relationships. Teasing apart homology from homoplasy of anatomical characters in this broad suite of body types remains an enormous...
30 CitationsSource
Cited By1
#1Kevin Padian (University of California, Berkeley)H-Index: 28
#2Armand de Ricqlès (CNRS: Centre national de la recherche scientifique)H-Index: 24
What can we know of the physiological regimes of ancient vertebrates? Essential to the exploration of this question are several epistemological tools: (i) a phylogenetic framework for interpreting ...
1 CitationsSource
The acquisition of mammalian endothermy is poorly constrained both phylogenetically and temporally. Here, we inferred the resting metabolic rates (RMRs) and the thermometabolic regimes (endothermy ...
2 CitationsSource
#1Christine M. Janis (Brown University)H-Index: 34
#2James G. Napoli (AMNH: American Museum of Natural History)
Last. Daniel E. Warren (SLU: Saint Louis University)H-Index: 5
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The involvement of mineralized tissues in acid–base homeostasis was likely important in the evolution of terrestrial vertebrates. Extant reptiles encounter hypercapnia when submerged in water, but ...
#1Mathieu G. Faure‐Brac (University of Paris)
#2François Pelissier (University of Paris)
Last. Jorge Cubo (University of Paris)H-Index: 23
view all 3 authors...