The role of ontogeny on character polarization in early dinosaurs: a new specimen from the Late Triassic of southern Brazil and its implications

References

• Alcober OA, Martínez RN. 2010. A new herrerasaurid (Dinosauria, Saurischia) from the Upper Triassic Ischigualasto formation of northwestern Argentina. ZooKeys. 63:55–81.
   PubMed Web of Science ®Google Scholar
• Barrett PM, Nesbitt SJ, Peecook BR. 2015. A large-bodied silesaurid from the Lifua member of the Manda beds (Middle Triassic) of Tanzania and its implications for body-size evolution in Dinosauromorpha. Gondwana Research. 27:925–931.10.1016/j.gr.2013.12.015
   Web of Science ®Google Scholar
• Bennett SC. 1993. The ontogeny in Pteranodon and other pterosaurs. Paleobiology. 19:92–106.10.1017/S0094837300012331
   Web of Science ®Google Scholar
• Bennett SC. 2015. An external mandibular fenestra and other archosauriform characters in basal pterosaurs re-examined. Historical Biology. 27:796–814.10.1080/08912963.2015.1036257
   Web of Science ®Google Scholar
• Benton MJ, Forth J, Langer MC. 2014. Models for the rise of the dinosaurs. Current Biology. 24:87–95.10.1016/j.cub.2013.11.063
   PubMed Web of Science ®Google Scholar
• Bittencourt JS, Kellner AWA. 2009. The anatomy and phylogenetic position of the Triassic dinosaur Staurikosaurus pricei Colbert, 1970. Zootaxa. 2079:1–56.
   Google Scholar
• Bittencourt JS, Arcucci AB, Marscicano CA, Langer MC. 2015. Osteology of the Middle Triassic archosaur Lewisuchus admixtus Romer (Chañares Formation, Argentina), its inclusivity, and relationships amongst early dinosauromorphs. J Syst Palaeontol. 13:189–219.10.1080/14772019.2013.878758
   Web of Science ®Google Scholar
• Bonaparte JF, Ferigolo J, Ribeiro AM. 1999. A new early Late Triassic saurischian dinosaur from Rio Grande do Sul State, Brazil. National Sci Museum Monographs. 15:89–109.
   Google Scholar
• Bouxin G. 2005. Ginkgo, a multivariate analysis package. J Vegetation Sci. 16:355–359.10.1111/j.1654-1103.2005.tb02374.x
   Web of Science ®Google Scholar
• Brochu CA. 1996. Closure of neurocentral sutures during crocodilian ontogeny: Implications for maturity assessment in fossil archosaurs. J Vertebr Paleontol. 16:49–62.10.1080/02724634.1996.10011283
   Web of Science ®Google Scholar
• Brown B, Schlaikjer EM. 1940. The structure and relationships of Protoceratops. Ann NY Acad Sci. 40:133–265.10.1111/nyas.1940.40.issue-3
   Google Scholar
• Brusatte SL, Benton MJ, Ruta M, Lloyd GT. 2008a. Superiority, competition, and opportunism in the evolutionary radiation of dinosaurs. Science. 321:1485–1488.10.1126/science.1161833
   PubMed Web of Science ®Google Scholar
• Brusatte SL, Benton MJ, Ruta M, Lloyd GT. 2008b. The first 50 Myr of dinosaur evolution: macroevolutionary pattern and morphological disparity. Biol Lett. 4:733–736.10.1098/rsbl.2008.0441
   PubMed Web of Science ®Google Scholar
• Brusatte SL, Carr TD, Williamson TE, Holtz TR, Hone DW, Williams SA. Dentary groove morphology does not distinguish ‘Nanotyrannus’ as a valid taxon of tyrannosauroid dinosaur. Comment on: “Distribution of the dentary groove of theropod dinosaurs: Implications for theropod phylogeny and the validity of the genus Nanotyrannus Bakker et al, 2016. Cretaceous Res. 65:232–237.10.1016/j.cretres.2016.02.007
   Web of Science ®Google Scholar
• Cabreira SF, Schualtz CL, Bittencourt JS, Soares MB, Fortier DC, Silva LR, Langer MC. 2011. New stem-sauropodomorph (Dinosauria, Saurischia) from the Triassic of Brazil. Naturwissenschafte. 98:1035–1040.10.1007/s00114-011-0858-0
   PubMed Web of Science ®Google Scholar
• Cabreira SF, Kellner AWA, Dias-da-Silva S, Silva LC, Bronzati M, Marsola JC, Müller RT, Bittencourt JS, Batista BJ, Raugust T, et al. 2016. A unique Late Triassic dinosauromorph assemblage reveals dinosaur ancestral anatomy and diet. Curr Biol. 26:3090–3095.10.1016/j.cub.2016.09.040
   PubMed Web of Science ®Google Scholar
• Carrano MT. 2006. Body-size evolution in the Dinosauria. In: Carrano MT, Gaudin TJ, Blob RW, Wible JR, editors. Amniote paleobiology: perspectives on the evolution of mammals, birds, and reptiles. Chicago (IL): University of Chicago Press; p. 225–268.
   Google Scholar
• Colbert EH. 1970. A saurischian dinosaur from the Triassic of Brazil. Am Museum Novitates. 2405:1–39.
   Google Scholar
• Colbert EH. 1990. Variation in Coelophysis bauri. In: Carpenter K, Currie PJ, editors. Dinosaur systematics: approaches and perspectives. Cambridge: Cambridge University Press; p. 81–90.10.1017/CBO9780511608377
   Google Scholar
• Dzik J. 2003. A beaked herbivorous archosaur with dinosaur affinities from the early Late Triassic of Poland. J Vertebr Paleontol. 23:556–574.10.1671/A1097
   Web of Science ®Google Scholar
• Ezcurra MD. 2010. A new early dinosaur (Saurischia: Sauropodomorpha) from the Late Triassic of Argentina: a reassessment of dinosaur origin and phylogeny. J Syst Palaeontol. 8:371–425.10.1080/14772019.2010.484650
   Web of Science ®Google Scholar
• Feirolgo J, Langer MC. 2007. A late triassic dinosauriform from south brazil and the origin of the ornithischian predentary bone. Historical Biol. 19:23–33.
   Google Scholar
• Goloboff PA, Farris JS, Nixon KC. 2008. TNT, a free program for phylogenetic analysis. Cladistics. 24:774–786.10.1111/cla.2008.24.issue-5
   Web of Science ®Google Scholar
• Griffin CT, Nesbitt SJ. 2016a. The femoral ontogeny and long bone histology of the Middle Triassic (?late Anisian) dinosauriform Asilisaurus kongwe and implications for the growth of early dinosaurs. J Vertebrate Paleontol. 36:e1111224.10.1080/02724634.2016.1111224
   Web of Science ®Google Scholar
• Griffin CT, Nesbitt SJ. 2016b. Anomalously high variation in postnatal development is ancestral for dinosaurs but lost in birds. Proc Nat Acad Sci. 113:14757–14762.10.1073/pnas.1613813113
   PubMed Web of Science ®Google Scholar
• Hammer Ø, Harper DAT, Ryan PD. 2001. PAST: paleontological statistics software package for education and data analysis. Palaeontologica Electronica. 4:1–9.
   Google Scholar
• Holliday CM, Ridgely RC, Sedlmayr JC, Witmer LM. 2010. Cartilaginous epiphyses in extant archosaurs and their implications for reconstructing limb function in dinosaurs. PLoS One. 5(9):e13120.10.1371/journal.pone.0013120
   PubMed Web of Science ®Google Scholar
• Holz M, Schultz CL. 1998. Taphonomy of the Brazilian Triassic paleoherpetofauna: fossilization mode and implications for morphological studies. Lethaia. 31:335–345.
   Web of Science ®Google Scholar
• Hone DWE, Farke AA, Wedel MJ. 2016. Ontogeny and the fossil record: what, if anything, is an adult dinosaur? Biol Lett. 12:20150947.10.1098/rsbl.2015.0947
   PubMed Web of Science ®Google Scholar
• Horn BLZ, Melo TM, Schultz CL, Philipp RP, Kloss HP, Goldber K. 2014. A new third-order sequence stratigraphic framework applied to the Triassic of the Paraná Basin, Rio Grande do Sul, Brazil, based on structural, stratigraphic and paleontological data. J South Amer Earth Sci. 55:123–132.10.1016/j.jsames.2014.07.007
   Web of Science ®Google Scholar
• Randall B. Irmis. Axial skeleton ontogeny in the Parasuchia (Archosauria: Pseudosuchia) and its implications for ontogenetic determination in archosaurs. Journal of Vertebrate Paleontology. 2007; 27(2) 350-361.
   Web of Science ®Google Scholar
• Johnson R. 1977. Size independent criteria for estimating relative age and the relationships among growth parameters in a group of fossil reptiles (Reptilia: Ichthyosauria). Can J Earth Sci. 14:1916–1924.10.1139/e77-162
   Web of Science ®Google Scholar
• Kear BP, Zammit M. 2014. In utero foetal remains of the Cretaceous ichthyosaurian Platypterygius: ontogenetic implications for character state efficacy. Geol Mag. 151:71–86.10.1017/S0016756813000113
   Web of Science ®Google Scholar
• Langer MC. 2003. The pelvic and hind limb anatomy of the stem-sauropodomorph Saturnalia tupiniquim (Late Triassic, Brazil). PaleoBios. 23:1–30.
   Google Scholar
• Langer MC. 2014. The origins of Dinosauria: much ado about nothing. Palaeontology. 57:469–478.10.1111/pala.12108
   Web of Science ®Google Scholar
• Langer MC, Abdala F, Richter M, Benton MJ. 1999. A sauropodomorph dinosaur from the Upper Triassic (Carnian) of Southern Brazil. Comptes Rendus de l’Académie des Sciences-Series IIA-Earth and Planetary Sci. 329:511–517.
   Google Scholar
• Langer MC, Bittencourt JS, Schultz CL. 2011. A reassessment of the basal dinosaur Guaibasaurus candelariensis, from the Late Triassic Caturrita Formation of south Brazil. Earth Environ Sci Trans R Soc Edinburgh. 101:301–332.
   Web of Science ®Google Scholar
• Langer MC, Ferigolo J. 2013. The Late Triassic dinosauromorph Sacisaurus agudoensis (Caturrita Formation; Rio Grande do Sul, Brazil): anatomy and affinities. Geol Soc, London, Spec Publ. 379:353–392.10.1144/SP379.16
   Google Scholar
• Martínez RN, Sereno PC, Alcober OA, Colombi CE, Renne PR, Montañez IP, Currie BS. 2011. A basal dinosaur from the dawn of the dinosaur era in southwestern Pangaea. Science. 331:201–210.
   Web of Science ®Google Scholar
• Müller RT. 2017. Are the dinosauromorph femora from the Upper Triassic of Hayden Quarry (New Mexico) three stages in a growth series of a single taxon? Anais da Academia Brasileira de Ciências. 82:835–839.10.1590/0001-3765201720160583
   Web of Science ®Google Scholar
• Müller RT, Langer MC, Cabreira SF, Dias-da-Silva S. 2016. The femoral anatomy of Pampadromaeus barberenai based on a new specimen from the Upper Triassic of Brazil. Historical Biol. 28:656–665.10.1080/08912963.2015.1004329
   Web of Science ®Google Scholar
• Nesbitt SJ. 2011. The early evolution of archosaurs: relationships and the origin of major clades. Bull Am Museum Nat History. 352:1–292.10.1206/352.1
   Web of Science ®Google Scholar
• Nesbitt SJ, Irmis RB, Parker WG, Smith ND, Turner AH, Rowe T. 2009. Hindlimb osteology and distribution of basal dinosauromorphs from the Late Triassic of North America. J Vertebrate Paleontol. 29:498–516.10.1671/039.029.0218
   Web of Science ®Google Scholar
• Nesbitt SJ, Sidor CA, Irmis RB, Angielzcyk KD, Smith RM, Tsuji LA. 2010. Ecologically distinct dinosaurian sister group shows early diversification of Ornithodira. Nature. 464:95–98.10.1038/nature08718
   PubMed Web of Science ®Google Scholar
• Piechowski R, Tałanda M, Dzik J. 2014. Skeletal variation and ontogeny of the Late Triassic Dinosauriform Silesaurus opolensis. J Vertebrate Paleontol. 34:1383–1393.10.1080/02724634.2014.873045
   Web of Science ®Google Scholar
• Pretto FA, Schultz CL, Langer MC. 2015. New dinosaur remains from the Late Triassic of southern Brazil (Candelária Sequence, Hyperodapedon Assemblage Zone). Alcheringa. 39:264–273.10.1080/03115518.2015.994114
   Web of Science ®Google Scholar
• Raath MA. 1990. Morphological variation in small theropods and its meaning in systematics: evidence from Syntarsus rhodesiensis. In: Carpenter K, Currie PJ, editors. Dinosaur systematics: approaches and perspectives. Cambridge: Cambridge University Press; p. 91–106.10.1017/CBO9780511608377
   Google Scholar
• Raath MA. 1969. A new coelurosaurian dinosaur from the Forest Sandstone of Rhodesia. Arnoldia Rhodesia. 4:1–25.
   Google Scholar
• Rauhut OW, Foth C, Tischlinger H, Norell MA. 2012. Exceptionally preserved juvenile megalosauroid theropod dinosaur with filamentous integument from the Late Jurassic of Germany. Proc Nat Acad Sci. 109:11746–11751.10.1073/pnas.1203238109
   PubMed Web of Science ®Google Scholar
• Reig OA. 1963. La presencia de dinosaurios saurisquios en los “Estratos de Ischigualasto” (Mesotriásico Superior) de las provincias de San Juan y La Rioja (Republica Argentina). Ameghiniana. 3:3–20.
   Google Scholar
• Sekiya T, Jin X, Zheng W, Shibata M, Azuma Y. 2014. A new juvenile specimen of Yunnanosaurus robustus (Dinosauria: Sauropodomorpha) from Early to Middle Jurassic of Chuxiong Autonomous Prefecture, Yunnan Province. China Historical Biol. 26:252–277.10.1080/08912963.2013.821702
   Web of Science ®Google Scholar
• Sereno PC, Forster CA, Robers RR, Monetta AM. 1993. Primitive dinosaur skeleton from Argentina and the early evolution of the Dinosauria. Nature. 361:64–66.10.1038/361064a0
   Web of Science ®Google Scholar
• Sharma PP, Clouse RM, Wheller WC. 2016. Hennig’s semaphoront concept and the use of ontogenetic stages in phylogenetic reconstruction. Cladistics. 33:93–108.
   PubMed Web of Science ®Google Scholar
• Steyer JS. 2000. Ontogeny and phylogeny in temnospondyls: a new method of analysis. Zool J Linn Soc. 130:449–467.10.1111/j.1096-3642.2000.tb01637.x
   Web of Science ®Google Scholar
• Trotteyn MJ, Martínez RN. 2013. First record of coxofemoral dysplasia in a Late Triassic rynchosaur. Ameghiniana. 50:217–226.
   Web of Science ®Google Scholar
• Tumarkin-Deratzian AR. 2009. Evaluation of long bone surface textures as ontogenetic indicators in centrosaurine ceratopsids. Anatomical Record. 292:1485–1500.10.1002/ar.v292:9
   Google Scholar
• Tumarkin-Deratzian AR, Vann DR, Dodson P. 2006. Bone surface texture as an ontogenetic indicator in long bones of the Canada goose Branta canadensis (Anseriformes: Anatidae). Zool J Linn Soc. 148:133–168.10.1111/j.1096-3642.2006.00232.x
   Web of Science ®Google Scholar
• Vega-Dias C, Maisch MW, Schwanke C. 2005. The taxonomic status of Stahleckeria impotens (Therapsida, Dicynodontia): redescription and discussion of its phylogenetic position. Revista Brasileira de Paleontologia. 8:221–228.
   Google Scholar
• Wang S, Stiegler J, Amiot R, Wang X, Du G, Clark JM, Xu X. 2017. Extreme ontogenetic changes in a ceratosaurian theropod. Curr Biol. 27:1–5.
   PubMed Web of Science ®Google Scholar
• Watanabe J, Matsuoka H. 2013. Ontogenetic change of morphology and surface texture of long bones in the Gray heron (Ardea cinerea, Ardeidae). In: Gohlich UB, Kroh A, editors. Proc 8th Int Meeting Soc Avian Paleontol Evol. Vienna: Verlag Naturhistorisches Museum; p. 279–306.
   Google Scholar
• Wills MA. 1998. Cambrian and recent disparity: the picture from priapulids. Paleobiology. 24:177–199.
   Web of Science ®Google Scholar
• Zerfass H, Lavina EL, Schultz CL, Garcia AJV, Faccini UF, Chemale FJr. 2003. Sequence stratigraphy of continental Triassic strata of Southernmost Brazil: a contribution to Southwestern Gondwana palaeogeography and palaeoclimate. Sedimentary Geol. 161:85–105.10.1016/S0037-0738(02)00397-4
   Web of Science ®Google Scholar
• Zerfass H, Sander A, Flores AF. 2007. Agudo, Folha SH22-VCV, escala 1:100000, Rio Grande do Sul. Brasília: Serviço Geológico do Brasil (CPRM).
   Google Scholar
• Zhao Q, Benton MJ, Sullivan C, Sander PM, Xu X. 2013. Histology and postural change during the growth of the ceratopsian dinosaur Psittacosaurus lujiatunensis. Nat Commun. 4:2079.
   PubMed Web of Science ®Google Scholar