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Articles

A new typothoracine aetosaur (Archosauria, Pseudosuchia) from the Upper Triassic of India with insights on biostratigraphy, diversification, and paleobiogeography

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Article: e2253292 | Received 07 Feb 2023, Published online: 06 Oct 2023

LITERATURE CITED

  • Abdala, F., & Rebeiro, A. M. (2010). Distribution and diversity patterns of Triassic cynodonts (Therapsida, Cynodontia) in Gondwana. Palaeogeography, Palaeoclimatology, Palaeoecology, 286, 202–217.
  • Agassiz, L. (1844). Monographie des poisons fossils du Vieux Grés Rouge ou Systéme Dévonien (Old Red Sandstone) des Iles Britanniques ed de Russie. Jent et Gassman, Neuchâtel, 171 pp.
  • Antczak, M. (2016). Late Triassic aetosaur (Archosauria) from Krasiejów (SW Poland): new species or an example of individual variation? Geological Journal, 51(5), 779–788.
  • Bandyopadhyay, S. (2011). Non-marine Triassic vertebrates of India; 33–46 in J.O. Calyo, J. Porifiri, B. González, and D. D. Santos (eds.), Paleontología y Dinosarios desde América Latina. EDIUNCE, Editorial de la Universidad Nacional de Cuyo, Mendoza, Argentina.
  • Bandyopadhyay, S., & Ray, S. (2020). Gondwana vertebrate faunas of India: their diversity and intercontinental relationships. Episodes Journal of International Geoscience, 43(1), 438–460.
  • Bandyopadhyay, S., & RoyChowdhury, T. K. (1996). Beginning of the continental Jurassic in India—a palaeontological approach. Museum of Northern Arizona Bulletin, 60, 371–378.
  • Bandyopadhyay, S., & Sengupta, D. P. (2006). Vertebrate faunal turnover during the Triassic-Jurassic transition: an Indian scenario. New Mexico Museum of Natural History and Science Bulletin, 37, 77–85.
  • Benton, M. J., Bernardi, M., & Kinsella, C. (2018). The Carnian Pluvial Episode and the origin of dinosaurs. Journal of the Geological Society, 175(6),1019–1026.
  • Bonaparte, J. F. (1969). Dos nuevas “faunas” de reptiles Triásicos de Argentina; 283–306 in A. J. Amos (ed.), Gondwana Stratigraphy, IUGS Symposium, Buenos Aires, 1–15 October 1967. Paris: United Nations Educational Scientific and Cultural Organization.
  • Brusatte, S. L., Butler, R. J., Mateus, O., & Steyer, J. S. (2015). A new species of Metoposaurus from the Late Triassic of Portugal and comments on the systematics and biogeography of metoposaurid temnospondyls. Journal of Vertebrate Paleontology, 35(3), e912988.
  • Buffa, V., Jalil, N. E., & Steyer, J. S. (2019). Redescription of Arganasaurus (Metoposaurus) azerouali (Dutuit) comb. nov. from the Upper Triassic of the Argana Basin (Morocco), and the first phylogenetic analysis of the Metoposauridae (Amphibia, Temnospondyli). Papers in Palaeontology, 5(4), 699–717.
  • Burmeister, K. C. (2000). Paleogeographic and biostratigraphic implications of new early Mesozoic terrestrial vertebrate fossils from the Poamay site: central Morondava Basin, Madagascar [Doctoral dissertation, University of California, Santa Barbara].
  • Casamiquela, R. M. (1960). Sobre dos nuevos estagonolepoideos argentinos. Ameghiniana, 2(1), 3–9.
  • Casamiquela, R. M. (1961). Dos nuevos estagonolepoideos argentinos (de Ischigualasto, San Juan). Revista de la Asociación Geológica Argentina, 16(3–4), 143–204.
  • Casamiquela, R. M. (1980). Nota sobre restos de un reptil aetosauroideo (Thecodontia, Aetosauria) de Quimal, Cordillera de Domeyko, Antofagasta. Prueba de la existencia del Neotriásico continental en los Andes del Norte de Chile. In Actas Congreso Argentino de Paleontología y Bioestratigrafía (No. 2, pp. 135–142).
  • Case, E. C. (1920). Preliminary description of a new suborder of phytosaurian reptiles with a description of a new species of Phytosaurus. The Journal of Geology, 28(6), 524–535.
  • Case, E. C. (1932). A perfectly preserved segment of the armor of a phytosaur, with associated vertebrae. Contributions from the Museum of Paleontology. University of Michigan, 4, 57–80.
  • Chakraborty, C., Mandal, N., & Ghosh, S. K. (2003). Kinematics of the Gondwana basins of peninsular India. Tectonophysics, 377, 299–324.
  • Chatterjee, S. (1985). Postosuchus, a new thecodontian reptile from the Triassic of Texas and the origin of tyrannosaurs. Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 309(1139), 395–460.
  • Chatterjee, S., Scotese, C. R., & Bajpai, S. (2017). Indian plate and its epic voyage from Gondwana to Asia: Its tectonic, paleoclimatic, and paleobiogeographic evolution. Geological Society of America Special Paper, 529, 1–147.
  • Cope, E. D. (1869). Synopsis of the extinct Batrachia, Reptilia, and Aves of North America. Transactions of the American Philosophical Society, 14, 1–252.
  • Cope, E. D. (1875). Report on the geology of that part of New Mexico examined during the field season of 1875. Annual Report of the Wheeler Survey, 61–116.
  • Czepiński, Ł., Dróżdż, D., Szczygielski, T., Tałanda, M., Pawlak, W., Lewczuk, A., … & Sulej, T. (2021). An Upper Triassic terrestrial vertebrate assemblage from the forgotten Kocury locality (Poland) with a new aetosaur taxon. Journal of Vertebrate Paleontology, 41(1), e1898977.
  • Dal Corso, J., Bernardi, M., Sun, Y., Song, H., Seyfullah, L. J., Preto, N., Gianolla, P., Ruffell, A., Kustatscher, E., Roghi, G., Merico, A., Hohn S., Schimdt A. R., Marzoli, A., Newton R. J., Wignall, P. B., & Benton, M. J. (2020). Extinction and dawn of the modern world in the Carnian (Late Triassic). Science Advances, 6(38), eaba0099.
  • Da-Silva, L. R, Desojo, J. B., Cabreira, S. F., Aires, A. S., Mueller, R. T., Pacheco, C. P., & Da-Silva, S. D. (2014). A new aetosaur from the Upper Triassic of the Santa Maria Formation, southern Brazil. Zootaxa, 3764(3), 240–278.
  • Dasgupta, S., Ghosh, P., & Gierlowski-Kordesch, E. H. (2017). A discontinuous ephemeral stream transporting mud aggregates in a continental rift basin: the Late Triassic Maleri Formation, India. Journal of Sedimentary Research, 87(8), 838–865.
  • Datta, D., & Ray, S. (2023). A giant phytosaur (Diapsida, Archosauria) from the Upper Triassic of India with new insights on phytosaur migration, endemism and extinction. Papers in Palaeontology, 9(1), e1476.
  • Datta, D., Ray, S., & Bandyopadhyay, S. (2021). Cranial morphology of a new phytosaur (Diapsida, Archosauria) from the Upper Triassic of India: implications for phytosaur phylogeny and biostratigraphy. Papers in Palaeontology, 7(2), 675–708.
  • Desojo, J. B., & Báez, A. M. (2005). The postcranial skeleton of Neoaetosauroides (Archosauria: Aetosauria) from the Upper Triassic of west-central Argentina. Ameghiniana, 42(1), 115–126.
  • Desojo, J. B., & Baez, A. M. (2007). Cranial morphology of the Late Triassic South American archosaur Neoaetosauroides engaeus: evidence for aetosaurian diversity. Paleontology, 50(1), 267–276.
  • Desojo, J. B., & Ezcurra, M. D. (2011). A reappraisal of the taxonomic status of Aetosauroides (Archosauria, Aetosauria) specimens from the Late Triassic of South America and their proposed synonymy with Stagonolepis. Journal of Vertebrate Paleontology, 31(3), 596–609.
  • Desojo, J. B., Ezcurra, M. D., & Kischlat, E. E. (2012). A new aetosaur genus (Archosauria: Pseudosuchia) from the early Late Triassic of southern Brazil. Zootaxa, 3166,1–33.
  • Desojo, J. B., Fiorelli, L. E., Ezcurra, M. D., Martinelli, A. G., Ramezani, J., Da Rosa, Á., & Langer, M. C. (2020). The Late Triassic Ischigualasto Formation at Cerro Las Lajas (La Rioja, Argentina): fossil tetrapods, high-resolution chronostratigraphy, and faunal correlations. Scientific Reports, 10(1), 1–34.
  • Desojo, J. B., Heckert, A. B., Martz, J. W., Parker, W. G., Schoch, R. R., Small, B. J., & Sulej, T. (2013). Aetosauria: a clade of armoured pseudosuchians from the Upper Triassic continental beds. Geological Society of London, Special Publications, 379(1), 203–239.
  • Dróżdż, D. (2018). Osteology of a forelimb of an aetosaur Stagonolepis olenkae (Archosauria: Pseudosuchia: Aetosauria) from the Krasiejów locality in Poland and its probable adaptations for a scratch-digging behavior. PeerJ, 6, e5595.
  • Dzik, J., Sulej, T., Kaim, A., & Niedžwiedzki, R. (2000). Póznotriasowe cmentarzysko ladowych czworonogów w Krasiejowie na Šlasku Opolskim (Late Triassic graveyard of large Triassic tetrapods in the Opole Silesia). Przeglacedild Geologiczny, 48(3), 226–235.
  • Fitch, A. J., Haas, M., C’Hair, W., Ridgley, E., Ridgley, B., Oldman, D., Reynolds C., & Lovelace, D. M. (2023). A New Rhynchosaur Taxon from the Popo Agie Formation, WY: Implications for a Northern Pangean Early-Late Triassic (Carnian) Fauna. Diversity, 15(4), 544.
  • Fraas, O. (1877). Aetosaurus ferratus Fraas, die gepanzerte Vogel-Echse aus dem Stubensandstein bei Stuttgart. Wiirttemburgische Naturwissenschaftliche, 33, 1–27.
  • Gauthier, J. A., & Padian, K. (1985). Phylogenetic, functional, and aerodynamic analyses of the origin of birds and their flight; 185–197 in Hecht, M. K., Ostrom, H. M., Viohl, J. and Wellnhofer, P. (eds.), The Beginnings of Birds. Proceedings of the International Archaeopteryx Conference. Freundo des Jura Museums, Eichstatt, Germany.
  • Goloboff, P. A., Farris, J. S., & Nixon, K. C. (2008). TNT, a free program for phylogenetic analysis. Cladistics, 24(5), 774–786.
  • Gregory, J. T. (1953). Typothorax and Desmatosuchus. Postilla, 16, 1–27.
  • Griffin, C. T., Wynd, B. M., Munyikwa, D., Broderick, T. J., Zondo, M., Tolan, S., & Taruvinga, H. R. (2022). Africa’s oldest dinosaurs reveal early suppression of dinosaur distribution. Nature, 609(7926), 313–319.
  • Harris, S. R., Gower, D. J., & Wilkinson, M. (2003). Intraorganismal homology, character construction, and the phylogeny of aetosaurian archosaurs (Reptilia, Diapsida). Systematic Biology, 52(2), 239–252.
  • Heckert, A. B., & Lucas, S. G. (1999). A new aetosaur (Reptilia: Archosauria) from the Upper Triassic of Texas and the phylogeny of aetosaurs. Journal of Vertebrate Paleontology, 19(1), 50–68.
  • Heckert, A. B., & Lucas, S. G. (2000). Taxonomy, phylogeny, biostratigraphy, biochronology, paleobiogeography, and evolution of the Late Triassic Aetosauria (Archosauria: Crurotarsi). Zentralblatt für Geologie und Paläontologie, Teil I, 1998(11–12), 1539–1587.
  • Heckert, A. B., & Lucas, S. G. (2002). South American occurrences of the Adamanian (Late Triassic: latest Carnian) index taxon Stagonolepis (Archosauria: Aetosauria) and their biochronological significance. Journal of Paleontology, 76(5), 852–863.
  • Heckert, A. B., Hunt, A. P., & Lucas, S. G. (1996). Redescription of Redondasuchus reseri, a Late Triassic aetosaur (Reptilia: Archosauria) from New Mexico (USA), and the biochronology and phylogeny of aetosaurs. Geobios, 29(5), 619–632.
  • Heckert, A. B., Fraser, N. C., & Schneider, V. P. (2017). A new species of Coahomasuchus (Archosauria, Aetosauria) from the Upper Triassic Pekin Formation, Deep River Basin, North Carolina. Journal of Paleontology, 91(1), 162–178.
  • Heckert, A. B., Martínez, R. N., & Celeskey, M. D. (2021). Anatomical details of Aetosauria (Archosauria: pseudosuchia) as revealed by an articulated posterior skeleton from the Upper Triassic Ischigualasto Formation, San Juan Province, Argentina. Ameghiniana, 58(6), 464–484.
  • Heckert, A. B., Schneider, V. P., Fraser, N. C., & Webb, R. A. (2015). A new aetosaur (Archosauria, Suchia) from the Upper Triassic Pekin Formation, Deep River Basin, North Carolina, USA, and its implications for early aetosaur evolution. Journal of Vertebrate Paleontology, 35(1), e881831.
  • Heckert, A. B., Lucas, S. G., Rinehart, L. F., Celeskey, M. D., Spielmann, J. A., & Hunt, A. P. (2010). Articulated skeletons of the aetosaur Typothorax coccinarum Cope (Archosauria: Stagonolepididae) from the Upper Triassic Bull Canyon Formation (Revueltian: early-mid Norian), eastern New Mexico, USA. Journal of Vertebrate Paleontology, 30(3), 619–642.
  • Hoffman, D. K., Heckert, A. B., & Zanno, L. E. (2018). Under the armor: X-ray computed tomographic reconstruction of the internal skeleton of Coahomasuchus chathamensis (Archosauria: Aetosauria) from the Upper Triassic of North Carolina, USA, and a phylogenetic analysis of Aetosauria. PeerJ, 6, e4368.
  • Hunt, A. P., & Lucas, S. G. (1990). Re-evalution of “Typothorax” meadei, a Late Triassic aetosaur from the United States. Paläontologische Zeitschrift, 64(3), 317–328.
  • Hunt, A. P., & Lucas, S. G. (1991). Rioarribasaurus, a new name for a Late Triassic dinosaur from New Mexico (USA). Paläontologische Zeitschrift, 65(1), 191–198.
  • Hunt, A. P., & Lucas, S. G. (1992). The first occurrence of the aetosaur Paratypothorax andressi (Reptilia, Aetosauria) in the western United States and its biochronological significance. Paläontologische Zeitschrift, 66(1), 147–157.
  • Irmis, R. B., Martz, J. W., Parker, W. G., & Nesbitt, S. J. (2010). Re-evaluating the correlation between Late Triassic terrestrial vertebrate biostratigraphy and the GSSP-defined marine stages. Albertiana, 38, 40–52.
  • Irmis, R. B., Mundil, R., Martz, J. W., & Parker, W. G. (2011). High-resolution U–Pb ages from the Upper Triassic Chinle Formation (New Mexico, USA) support a diachronous rise of dinosaurs. Earth and Planetary Science Letters, 309(3–4), 258–267.
  • Jalil, N., Lucas, S. G., & Hunt, A. P. (1995). Biochronological significance of aetosaurs and phytosaurs (Reptilia, Archosauromorpha) in the Triassic Zarzaitine Series of Algeria. Neues Jahrbuch für Geologie und Paläontologie-Monatshefte, 173–181.
  • Jenkins, F. A. Jr., Shubin N. H., Amaral W. W., Gatesy S. M., Schaff C. R., Clemmensen L. B., Downs W. R., Davidson A. R., Bonde N., & Osbaeck F. F. (1994). Late Triassic continental vertebrates and depositional environments of the Fleming Fjord Formation, Jameson Land, East Greenland. Meddelelser om GrØnland Geoscience, 32, 1–25.
  • Kutty, T. S., & Sengupta D. P., (1989). Late Triassic formations of the Pranhita-Godavari valley and their vertebrate faunal sequence-a reappraisal. Indian Journal of Earth Sciences, 16(4), 189–206.
  • Kutty, T. S., Jain S. L., & Chowdhury, T. R. (1987). Gondwana sequence of the northern Pranhita–Godavari Valley: its stratigraphy and vertebrate faunas. The Palaeobotanist, 36, 214–219.
  • Kutty, T. S., Chatterjee, S., Galton, P. M., & Upchurch, P. (2007). Basal sauropodomorphs (Dinosauria: Saurischia) from the Lower Jurassic of India: their anatomy and relationships. Journal of Paleontology, 81(6), 1218–1240.
  • Langer, M. C. (2005). Studies on continental Late Triassic tetrapod biochronology. II. The Ischigualastian and a Carnian global correlation. Journal of South American Earth Sciences, 19(2), 219–239.
  • Langer, M. C., Ribeiro, A. M., Schultz, C. L., & Ferigolo, J. (2007). The continental tetrapod-bearing Triassic of south Brazil. New Mexico Museum of Natural History and Science Bulletin, 41, 201–218.
  • Langer, M. C., da Rosa, Á. A., & Montefeltro, F. C. (2017). Supradapedon revisited: geological explorations in the Triassic of southern Tanzania. PeerJ, 5, e4038.
  • Leiggi, P., & May, P. (eds.). 1994. Vertebrate Paleontological Techniques, Vol. 1. Cambridge University Press, Cambridge, 344 pp.
  • Long, R. A., & Ballew K. L. (1985). Aetosaur dermal armor from the Late Triassic of south western North America, with special reference to material from the Chinle Formation of Petrified Forest National Park; 45–68 in E. H. Colbert, and R. R. Johnson (eds.), The Petrified Forest Through the Ages, 75th Anniversary Symposium November 7, 1981. Museum of Northern Arizona Bulletin 54.
  • Long, R. A., & Murry P. A. (1995). Late Triassic (Carnian and Norian) tetrapods from the southwestern United States. New Mexico Museum of Natural History and Science Bulletin, 4, 1–254.
  • Lucas, S. G. (2010). The Triassic timescale based on nonmarine tetrapod biostratigraphy and biochronology. Geological Society, London, Special Publications, 334(1), 447–500.
  • Lucas, S. G. (2018). Late Triassic terrestrial tetrapods: Biostratigraphy, biochronology and biotic events; 351–405 in L. H. Tanner (ed.), The Late Triassic World, Springer International Publishing, Switzerland, 805 pp.
  • Lucas, S. G. (2020). Biochronology of Late Triassic Metoposauridae (Amphibia, Temnospondyli) and the Carnian pluvial episode. Annales Societatis Geologorum Poloniae, 90, 409–418.
  • Lucas, S. G., Heckert, A. B., & Huber, P. (1998). Aetosaurus (Archosauromorpha) from the Upper Triassic of the Newark Supergroup, eastern United States, and its biochronological significance. Palaeontology, 41(6), 1215–1230.
  • Lucas, S. G., Heckert, A. B., & Rinehart, L. F. (2006). The Late Triassic aetosaur Paratypothorax. In Harris J. D., Lucas S. G., Spielmann J. A., Lockley M. G., Milner A. R. C., & Kirkland J. I. (eds). The Triassic-Jurassic Terrestrial Transition, New Mexico Museum of Natural History and Science Bulletin. Albuquerque: New Mexico Museum of Natural History and Science, 37, 575–580.
  • Lucas, S. G., Hunt, A. P., Heckert, A. B., & Spielmann, J. A. (2007). Global Triassic tetrapod biostratigraphy and biochronology: 2007 status. New Mexico Museum of Natural History and Science Bulletin, 41, 229–240.
  • Lucas, S. G., Rinehart, L. F., Krainer, K., Spielmann, J. A., & Heckert, A. B. (2010). Taphonomy of the Lamy amphibian quarry: a Late Triassic bonebed in New Mexico, USA. Palaeogeography, Palaeoclimatology, Palaeoecology, 298(3–4), 388–398.
  • Lydekker, R. (1887). The fossil vertebrata of India. Records of the Geological Survey of India, 20, 51–80.
  • Marsh, O. C. (1884). The classification and affinities of dinosaurian reptiles. Nature, 31, 68–69.
  • Marsh, O. C. (1896). ART. VIII.–A New Belodont Reptile (STEGOMUS) from the Connecticut River Sandstone. American Journal of Science (1880–1910), 2(7), 59.
  • Marsh, A. D., Smith, M. E., Parker, W. G., Irmis, R. B., & Kligman, B. T. (2020). Skeletal anatomy of Acaenasuchus geoffreyi Long and Murry, 1995 (Archosauria: Pseudosuchia) and its implications for the origin of the aetosaurian carapace. Journal of Vertebrate Paleontology, 40(4), e1794885.
  • Martinez, R. N., Sereno, P. C., Alcober, O. A., Colombi, C. E., Renne, P. R., Montañez, I. P., & Currie, B. S. (2011). A basal dinosaur from the dawn of the dinosaur era in southwestern Pangaea. Science, 331(6014), 206–210.
  • Martz, J. W. (2002). The morphology and ontogeny of Typothorax coccinarum (Archosauria, Stagonolepididae) from the Upper Triassic of the American Southwest [Doctoral dissertation, Texas Tech University].
  • Martz, J. W., & Parker W. G. (2017). Revised formulation of the Late Triassic land vertebrate “Faunachrons” of western North America: recommendations for codifying nascent systems of vertebrate biochronology. In K. E. Zeigler K. E. & Parker W. G. (Eds.), Terrestrial depositional systems: Deciphering complexities through multiple stratigraphic methods, (pp. 39–124). Amsterdam: Elsevier.
  • Martz, J. W., & Small, B. J. (2006). Tecovasuchus chatterjeei, a new aetosaur (Archosauria: Stagonolepididae) from the Tecovas Formation (carnian, Upper Triassic) of Texas. Journal of Vertebrate Paleontology, 26(2), 308–320.
  • Martz, J. W., Mueller, B., Nesbitt, S. J., Stocker, M. R., Parker, W. G., Atanassov, M., Fraser, N., Weinbaum, J., & Lehane, J. R. (2013). A taxonomic and biostratigraphic re-evaluation of the Post Quarry vertebrate assemblage from the Cooper Canyon Formation (Dockum Group, Upper Triassic) of southern Garza County, western Texas. Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 103(3–4), 339–364.
  • Nath, T. T., & Yadagiri, P. (2007). A new mammal-like reptile (Cynodontia) from Upper Triassic Maleri Formation of Pranhita-Godavari Valley, Andhra Pradesh. Geological Society of India, 69(1), 57–60.
  • Nesbitt, S. J., Stocker, M. R., Ezcurra, M. D., Fraser, N. C., Heckert, A. B., Parker, W. G., & Marsh, A. D. (2022). Widespread azendohsaurids (Archosauromorpha, Allokotosauria) from the Late Triassic of western USA and India. Papers in Palaeontology, 8(1), e1413.
  • Novas, F. E., Ezcurra, M. D., Chatterjee, S., & Kutty, T. S. (2011). New dinosaur species from the Upper Triassic Upper Maleri and Lower Dharmaram formations of central India. Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 101(3–4), 333–349.
  • Osborn, H. F. (1903). On the primary division of the Reptilia into two sub-classes, Synapsida and Diapsida. Science, 17(424), 275–276.
  • Paes-Neto, V. D., Desojo, J. B., Brust, A. C., Ribeiro, A. M., Schultz, C. L., & Soares, M. B. (2021a). The first braincase of the basal aetosaur Aetosauroides scagliai (Archosauria: Pseudosuchia) from the Upper Triassic of Brazil. Journal of Vertebrate Paleontology, 41(2), e1928681.
  • Paes-Neto, V. D., Desojo, J. B., Brust, A. C. B., Schultz, C. L., Da-Rosa, A. A. S., & Soares, M. B. (2021b). Intraspecific variation in the axial skeleton of Aetosauroides scagliai (Archosauria: Aetosauria) and its implications for the aetosaur diversity of the Late Triassic of Brazil. Anais da Academia Brasileira de Ciências, 93, suppl. 2, 1–36.
  • Parker, W. G. (2005). A new species of the Late Triassic aetosaur Desmatosuchus (Archosauria: Pseudosuchia). Comptes Rendus Palevol, 4(4), 327–340.
  • Parker, W. G. (2007). Reassessment of the aetosaur ‘Desmatosuchus’ chamaensis with a reanalysis of the phylogeny of the Aetosauria (Archosauria: Pseudosuchia). Journal of Systematic Palaeontology, 5(1), 41–68.
  • Parker, W. G. (2008). Description of new material of the aetosaur Desmatosuchus spurensis (Archosauria: Suchia) from the Chinle Formation of Arizona and a revision of the genus Desmatosuchus. PaleoBios, 28(1), 1–40.
  • Parker, W. G. (2016a). Revised phylogenetic analysis of the Aetosauria (Archosauria: Pseudosuchia); assessing the effects of incongruent morphological character sets. PeerJ, 4, e1583.
  • Parker, W. G. (2016b). Osteology of the Late Triassic aetosaur Scutarx deltatylus (Archosauria: Pseudosuchia). PeerJ, 4, e2411.
  • Parker, W. G. (2018a). Anatomical notes and discussion of the first described aetosaur Stagonolepis robertsoni (Archosauria: Suchia) from the Upper Triassic of Europe, and the use of plesiomorphies in aetosaur biochronology. PeerJ, 6, e5455.
  • Parker, W. G. (2018b). Redescription of Calyptosuchus (Stagonolepis) wellesi (Archosauria: Pseudosuchia: Aetosauria) from the Late Triassic of the Southwestern United States with a discussion of genera in vertebrate paleontology. PeerJ, 6, e4291.
  • Parker, W. G., & Martz, J. W. (2010). Using positional homology in aetosaur (Archosauria: Pseudosuchia) osteoderms to evaluate the taxonomic status of Lucasuchus hunti. Journal of Vertebrate Paleontology, 30(4), 1100–1108.
  • Parker, W. G., & Martz, J. W. (2011). The Late Triassic (Norian) Adamanian–Revueltian tetrapod faunal transition in the Chinle Formation of Petrified Forest National Park, Arizona. Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 101(3–4), 231–260.
  • Parker, W.G., and Martz, J.W., (2017), Building local biostratigraphic models for the Upper Triassic of western North America: Methods and considerations. In Zeigler, K. E. and Parker, W. G. (eds). Terrestrial depositional systems: Deciphering complexities through multiple stratigraphic methods. Elsevier, 1–38.
  • Parker, W. G., Stocker, M. R., & Irmis, R. B. (2008). A new desmatosuchine aetosaur (Archosauria: Suchia) from the Upper Triassic Tecovas Formation (Dockum Group) of Texas. Journal of Vertebrate Paleontology, 28(3), 692–701.
  • Parker, W. G., Nesbitt, S. J., Irmis, R. B., Martz, J. W., Marsh, A. D., Brown, M. A., Stocker, M. R., & Werning, S. (2022). Osteology and relationships of Revueltosaurus callenderi (Archosauria: Suchia) from the Upper Triassic (Norian) Chinle Formation of Petrified Forest National Park, Arizona, United States. The Anatomical Record, 305(10), 2353–2414.
  • Parrish, J. M. (1994). Cranial osteology of Longosuchus meadei and the phylogeny and distribution of the Aetosauria. Journal of Vertebrate Paleontology, 14(2), 196–209.
  • Prasad, G. V., Singh, K., Parmar, V., Goswami, A., & Sudan, C. S. (2008). Hybodont shark teeth from the continental Upper Triassic deposits of India. 413-432. In Arratia, G., Schultze, H.-P., & Wilson, M. V. H. (eds). Mesozoic fishes, 4: Homology and Phylogeny. Friedrich Pfeil, Munich. 502 pp.
  • Ramezani, J., Hoke, G. D., Fastovsky, D. E., Bowring, S. A., Therrien, F., Dworkin, S. I., Atchley, S. C., & Nordt, L. C. (2011). High-precision U-Pb zircon geochronology of the Late Triassic Chinle Formation, Petrified Forest National Park (Arizona, USA): Temporal constraints on the early evolution of dinosaurs. Geological Society of America Bulletin, 123(11–12), 2142–2159.
  • Ramezani, J., Fastovsky, D. E., & Bowring, S. A. (2014). Revised chronostratigraphy of the lower Chinle Formation strata in Arizona and New Mexico (USA): high-precision U-Pb geochronological constraints on the Late Triassic evolution of dinosaurs. American Journal of Science, 314(6), 981–1008.
  • Rasmussen, C., Mundil, R., Irmis, R. B., Geisler, D., Gehrels, G. E., Olsen, P. E., & Parker, W. G. (2021). U-Pb zircon geochronology and depositional age models for the Upper Triassic Chinle Formation (Petrified Forest National Park, Arizona, USA): Implications for Late Triassic paleoecological and paleoenvironmental change. Geological Society of America Bulletin, 133(3–4), 539–558.
  • Reyes, W. A., Parker, W. G., & Marsh, A. D. (2021). Cranial anatomy and dentition of the aetosaur Typothorax coccinarum (Archosauria: Pseudosuchia) from the Upper Triassic (Revueltian–mid Norian) Chinle Formation of Arizona. Journal of Vertebrate Paleontology, 40(6), e1876080.
  • Rixon, A. E. (1976). Fossil animal remains: their preparation and conservation. The Athlone Press, University of London, London 304 pp.
  • Sawin, H. J. (1947). The pseudosuchian reptile Typothorax meadei. Journal of Paleontology, 21(3), 201–238.
  • Scheyer, T. M., Desojo, J. B., & Cerda, I. A. (2014). Bone histology of phytosaur, aetosaur, and other archosauriform osteoderms (Eureptilia, Archosauromorpha). The Anatomical Record, 297(2), 240–260.
  • Schoch, R. R. (2007). Osteology of the small archosaur Aetosaurus from the Upper Triassic of Germany. Neues Jahrbuch Für Geologie Und Paläontologie-Abhandlungen, 246, 1–35.
  • Schoch, R. R., & Desojo, J. B. (2016). Cranial anatomy of the aetosaur Paratypothorax andressorum Long & Ballew, 1985, from the Upper Triassic of Germany and its bearing on aetosaur phylogeny. Neues Jahrbuch für Geologie und Paläontologie-Abhandlungen, 279, 73–95.
  • Scotese, C. R. (2001). Atlas of Earth History. PALEOMAP Project. Arlington, University of Texas, 52 pp.
  • Sengupta, D. P. (2002). Indian metoposaurid amphibians revised. Paleontological Research, 6(1), 41–65.
  • Small, B. J. (1998). The occurrence of Aetosaurus in the Chinle Formation (Late Triassic, USA) and its biostratigraphic significance. Neues Jahrbuch für Geologie und Paläontologie-Monatshefte, 5(1998), 285–296.
  • Small, B. J. (2002). Cranial anatomy of Desmatosuchus haplocerus (Reptilia: Archosauria: Stagonolepididae). Zoological Journal of the Linnean Society of London, 136(1), 97–111.
  • Small, B. J., & Martz, J. W. (2013). A new aetosaur from the Upper Triassic Chinle Formation of the Eagle Basin, Colorado, USA. Geological Society, London, Special Publications, 379(1), 393–412.
  • Spielmann, J. A., & Lucas, S. G. (2012). Tetrapod fauna of the Upper Triassic Redonda Formation, east central New Mexico: the characteristic assemblage of the Apachean land-vertebrate faunachron. New Mexico Museum of Natural History and Science Bulletin, 55,1–119.
  • Spielmann, J. A., Hunt, A. P., Lucas, S. G., & Heckert, A. B. (2006). Revision of Redondasuchus (Archosauria: Aetosauria) from the Upper Triassic Redonda Formation, New Mexico, with description of a new species. New Mexico Museum of Natural History and Science Bulletin, 37, 583–587.
  • Sulej, T. (2010). The skull of an early Late Triassic aetosaur and the evolution of the stagonolepidid archosaurian reptiles. Zoological Journal of the Linnean Society of London, 158(4), 860–881.
  • Sulej, T., Niedźwiedzki, G., & Bronowicz, R. (2012). A new Late Triassic vertebrate fauna from Poland with turtles, aetosaurs, and coelophysoid dinosaurs. Journal of Vertebrate Paleontology, 32(5), 1033–1041.
  • Taborda, J. R., Heckert, A. B., & Desojo, J. B. (2015). Intraspecific variation in Aetosauroides scagliai Casamiquela (Archosauria: Aetosauria) from the Upper Triassic of Argentina and Brazil: an example of sexual dimorphism? Ameghiniana, 52(2), 173–187.
  • Tanner, L. H. (2000). Palustrine-lacustrine and alluvial facies of the (Norian) Owl Rock Formation (Chinle Group), Four Corners region, southwestern U.S.A.: implications for Late Triassic paleoclimate. Journal of Sedimentary Research, 70(6), 1280–1289.
  • Tanner, L. H. (2003). Pedogenic features of the Chinle Group, Four Corners region: evidence of Late Triassic aridification. In Lucas, S. G., Semken, S. C., Berglof, W., & Ulmer-Scholle, D. S. (eds). Geology of the Zuni Plateau: New Mexico Geological Society Guidebook, 54, 269–280.
  • Teschner, E. M., Konietzko-Meier, D., & Klein, N. (2022). Growth and limb bone histology of aetosaurs and phytosaurs from the Late Triassic Krasiejów locality (sw Poland) reveals strong environmental influence on growth pattern. Contributions to Zoology, 91(3), 199–232.
  • Tewari, R. C., & Maejima, W. (2010). Origin of Gondwana basins of peninsular India. Journal of Geosciences, 53, 43–49.
  • von Baczko, M. B., Taborda, J. R., & Desojo, J. B. (2018). Paleoneuroanatomy of the aetosaur Neoaetosauroides engaeus (Archosauria: Pseudosuchia) and its paleobiological implications among archosauriforms. PeerJ, 6, e5456.
  • von Huene, F. (1915). On reptiles of the New Mexican Trias in the Cope collection. Bulletin of the American Museum of Natural History, 34, 485–507.
  • von Huene, F. (1920). Osteologie von Aëtosaurus ferratus O. Fraas. Acta Zoologica, 1(3), 465–491.
  • von Huene, F. (1940). The tetrapod fauna of the upper Triassic Maleri bets. Palaeontologica Indica, new series, 32(1), 1–42.
  • Walker, A. D. (1961). Triassic reptiles from the Elgin area: Stagonolepis, Dasygnathus and their allies. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, 244(709), 103–204.
  • Whiteside, J. H., Grogan, D. S., Olsen, P. E., & Kent, D. V. (2011). Climatically driven biogeographic provinces of Late Triassic tropical Pangea. Proceedings of the National Academy of Sciences, 108(22), 8972–8977.
  • Zeigler, K. E., Heckert, A. B., & Lucas, S. G. (2002). A new species of Desmatosuchus (Archosauria: Aetosauria) from the Upper Triassic of the Chama Basin, north-central New Mexico. New Mexico Museum of Natural History and Science Bulletin, 21, 215–219.
  • Zittel, K. A. von. 1887 (1887–1890). Handbuch der Paläontologie. I. Abtheilung. Paläozoologie. 3: Vertebrata (Pisces, Amphibia, Reptilia, Aves). R. Oldenbourg, München & Leipzig, 900 pp.

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