AXIAL SKELETON ONTOGENY IN THE PARASUCHIA (ARCHOSAURIA: PSEUDOSUCHIA) AND ITS IMPLICATIONS FOR ONTOGENETIC DETERMINATION IN ARCHOSAURS

By R. Irmis. 2007

257 citations recorded by the source corpus.

Subfields: Paleontology

View Paper: https://www.semanticscholar.org/paper/d448a18db07d5912bfb5c8a183e98ecf96cee889

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In Paleontology

1. S. Nesbitt
2. M. Norell
3. S. Brusatte
4. R. Butler
5. P. Makovicky
6. J. Choiniere
7. J. Desojo
8. R. Schoch

Citations in the corpus

• Osteology of Cryolophosaurus ellioti (Dinosauria: Theropoda) from the Early Jurassic of Antarctica and implications for early theropod evolution (2007, background): “…the fifth sacral (= ‘caudosacral 1’) lacks any sign of fusion of its centrum to the preceding sacral centrum, and the neurocentral sutures on several of the caudal vertebrae are not obliterated, suggesting that this specimen may not represent a fully mature individual (Brochu, 1996; Irmis, 2007).”
• Postcranial axial skeleton of Europasaurus holgeri (Dinosauria, Sauropoda) from the Upper Jurassic of Germany: implications for sauropod ontogeny and phylogenetic relationships of basal Macronaria (2014, background): “As noted by Queiroz (1985), sexual maturity represents only a single ontogenetic character, so a more comprehensive view of maturity is needed, and this must be based on growth dynamics and the ontogenetic sequence of the appearance of autapomorphies (Irmis 2007).”
• Aetosauria: a clade of armoured pseudosuchians from the Upper Triassic continental beds (2013, background): “Presumably, aetosaurs followed J. B. DESOJO ET AL.226 the ontogenetic trajectory postulated for crocodilians (Brochu 1996) and described in phytosaurs by Irmis (2007), with neurocentral sutures closing from the posterior to the anterior portion of the presacral skeleton.”
• Evidence for gregarious behavior and age segregation in sauropod dinosaurs (2009, background): “Given that neurocentral sutures close semi-sequentially in most archosaurs rather than all at once (Brochu, 1996; Irmis, 2007), some fused sutures are not unexpected in a large assemblage of immature individuals.”
• The oldest known metriorhynchid super-predator: a new genus and species from the Middle Jurassic of England, with implications for serration and mandibular evolution in predacious clades (2013, background): “Although within Archosauria there is variation in sequence of the neurocentral suture closure (see Irmis 2007), the caudal-cranial pattern has been observed D ow nl oa de d by [ M ar k Y pu ng ] at 0 1: 48 0 4 Ja nu ar y 20 13 Figure 10.”
• The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa (2010, background): “Recent phylogenetic analyses of basal dinosaurs generally resolve Herrerasaurus as a basal saurischian, outside of the Theropoda–Sauropodomorpha split (Langer, 2004; Langer & Benton, 2006; Irmis et al., 2007b).”
• A new early dinosaur (Saurischia: Sauropodomorpha) from the Late Triassic of Argentina: a reassessment of dinosaur origin and phylogeny (2010, background): “The preserved caudal vertebrae present fully closed neurocentral sutures, suggesting that the specimen is not a young juvenile (Irmis 2007).”
• A juvenile specimen of a new coelurosaur (Dinosauria: Theropoda) from the Middle–Late Jurassic Shishugou Formation of Xinjiang, People's Republic of China (2014, background): “…corroborated by the lack of complete fusion of any of the neural arches to the centra in the vertebral column, which suggests that IVPP V15709 is an immature individual, although neural arch fusion is not necessarily a good indicator of developmental stage in archosaurs (Brochu 1996; Irmis 2007).”
• The Early Evolution of Archosaurs: Relationships and the Origin of Major Clades (2011, background): “All authors noted that the specimen represents a skeletally immature individual because none of the neural sutures are closed (see Brochu, 1996; Irmis, 2007).”
• The Femoral Ontogeny and Long Bone Histology of the Middle Triassic (?Late Anisian) Dinosauriform Asilisaurus kongwe and Implications for the Growth of Early Dinosaurs (2016, background): “…compares femora of later ontogenetic stages, and they use previously published histology (Fostowicz-Frelik and Sulej, 2010) and degree of neurocentral suture fusion (Brochu, 1996; Irmis, 2007) to estimate that at least most of the S. opolensis femora in the sample are close to skeletal maturity.”