Sobreviventes: diversificação de Archosauromorpha após a Extinção Permo-Triássica [PDF]
Terrae Didatica, 2020 The Archosauromorpha is defined as the clade that comprises all diapsids more closely relatedto the lineage of birds (Ornithodira or Avemetatarsalia) and crocodylians (Pseudosuchia or Crurotarsi) thanto Lepidosauria.
Tiane Macedo De-Oliveira +2 more
semanticscholar +4 more sources
Identifying medullary bone in extinct avemetatarsalians: challenges, implications and perspectives. [PDF]
Philos Trans R Soc Lond B Biol Sci, 2020 Medullary bone (MB) is a sex-specific tissue produced by female birds during the laying cycle, and it is hypothesized to have arisen within Avemetatarsalia, possibly outside Avialae.
Canoville A, Schweitzer MH, Zanno L.
europepmc +2 more sources
New information on Late Triassic sauropodomorph dinosaurs provides support for the independent acquisition of postcranial skeletal pneumaticity in avemetatarsalian lineages. [PDF]
J AnatWithin Avemetatarsalia, postcranial skeletal pneumaticity (PSP) occurs in pterosaurs, as well as theropod (including extant Aves) and sauropod dinosaurs.
Beeston SL +5 more
europepmc +2 more sources
Climatic drivers of latitudinal variation in Late Triassic tetrapod diversity [PDF]
Palaeontology, Volume 64, Issue 1, Page 101-117, January 2021., 2020 The latitudinal biodiversity gradient (LBG), the increase in biodiversity from the poles to the equator, is one of the most widely recognized global macroecological patterns, yet its deep time evolution and drivers remain uncertain.
Butler, Richard J +4 more
core +5 more sources
The Anatomy of Teleocrater rhadinus, an Early Avemetatarsalian from the Lower Portion of the Lifua Member of the Manda Beds (Middle Triassic) [PDF]
Journal of Vertebrate Paleontology, 2017 Bird-line archosaurs (= Avemetatarsalia, the clade containing birds, dinosaurs, pterosaurs, and their kin) originated in the Triassic Period. However, the earliest evolution of this group is poorly documented because fossils are extremely rare and ...
S. Nesbitt +4 more
semanticscholar +3 more sources
Evolutionary and ontogenetic changes of the anatomical organization and modularity in the skull of archosaurs. [PDF]
Sci Rep, 2020 Comparative anatomy studies of the skull of archosaurs provide insights on the mechanisms of evolution for the morphologically and functionally diverse species of crocodiles and birds.
Lee HW, Esteve-Altava B, Abzhanov A.
europepmc +3 more sources
Diverging trends in erythrocyte size elucidate cardiovascular evolution in stem dinosaurs and crocodilians. [PDF]
Proc Biol SciRed blood cell (RBC) size constrains the rate of diffusion of gases between (i) the environment and the capillary beds of the gas exchanger and (ii) the blood and organs.
Byrne PJ +5 more
europepmc +2 more sources
The earliest bird-line archosaurs and the assembly of the dinosaur body plan [PDF]
Nature, 2017 © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.The relationship between dinosaurs and other reptiles is well established, but the sequence of acquisition of dinosaurian features has been obscured by the scarcity of ...
S. Nesbitt +10 more
semanticscholar +3 more sources
Arctic ice and the ecological rise of the dinosaurs. [PDF]
Sci Adv, 2022 Abundant lake ice-rafted debris in Late Triassic and earliest Jurassic strata of the Junggar Basin of northwestern China (paleolatitude ~71°N) indicates that freezing winter temperatures typified the forested Arctic, despite a persistence of extremely ...
Olsen P +9 more
europepmc +3 more sources
The rise of the ruling reptiles and ecosystem recovery from the Permo-Triassic mass extinction. [PDF]
Proc Biol Sci, 2018 One of the key faunal transitions in Earth history occurred after the Permo-Triassic mass extinction (ca 252.2 Ma), when the previously obscure archosauromorphs (which include crocodylians, dinosaurs and birds) become the dominant terrestrial vertebrates.
Ezcurra MD, Butler RJ.
europepmc +6 more sources