| Description | Rayososaurus is a genus of plant-eating sauropod dinosaur of the superfamily Diplodocoidea. It was found in the Candeleros Formation, but was named Rayososaurus after the Rayoso Member, which later has been elevated to the older Rayoso Formation. The formations are located in the Neuquén Basin of northern Patagonia, Argentina. Rayososaurus lived during the Cenomanian epoch of the Late Cretaceous, about 99 to 96 million years ago. The type species is R. agrioensis, named by Argentinian paleontologist José Bonaparte in 1996. The species epithet agrioensis refers to the Agrio del Medio locality.
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| Source Data | |
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| Rank | genus |
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| Taxonomy (GBIF) | Life : Animalia : Chordata : Reptilia : Dinosauria : Rebbachisauridae : Rayososaurus |
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| Taxonomy (PBDB) | Life : Animalia : Chordata : Saurischia : Rebbachisauridae : Rayososaurus |
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| Taxonomic Status (GBIF) | accepted |
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Classification
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| Scientific Name | Rayososaurus Bonaparte, 1996 |
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| Name Published In | Muench Geowiss Abh Reihe A Geol Palaeontol 30, April |
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| Opinions (PBDB) | | Name | Rank | Opinion | Evidence | Author |
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| Rayososaurus | genus | belongs to Sauropoda | stated with evidence | Bonaparte, 1996 | | Rayososaurus | genus | nomen dubium Rebbachisaurus | stated without evidence | Calvo and Salgado, 1996 | | Rayososaurus | genus | belongs to Rebbachisauridae | stated without evidence | Bonaparte, 1997 | | Rayososaurus | genus | belongs to Diplodocoidea | stated without evidence | Wilson and Sereno, 1998 | | Rayososaurus | genus | belongs to Rebbachisauridae | stated with evidence | Wilson, 2002 | | Rayososaurus | genus | belongs to Rebbachisauridae | stated without evidence | Gallina et al., 2002 | | Rayososaurus | genus | belongs to Diplodocoidea | stated without evidence | Medeiros and Schultz, 2004 | | Rayososaurus | genus | belongs to Rebbachisauridae | stated with evidence | Upchurch et al., 2004 | | Rayososaurus | genus | belongs to Rebbachisauridae | stated without evidence | Harris and Dodson, 2004 | | Rayososaurus | genus | belongs to Rebbachisauridae | stated with evidence | Carballido et al., 2010 | | Rayososaurus | genus | belongs to Limaysaurinae | stated with evidence | Carballido et al., 2012 | | Rayososaurus | genus | belongs to Rebbachisauridae | stated with evidence | Ibiricu et al., 2012 |
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| Status (PBDB) | extinct |
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| Taxon Size (PBDB) | 2 |
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| First Recorded Appearance | 99.6 - 93.5 Ma
Late/Upper Cretaceous |
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| Last Recorded Appearance | 99.6 - 93.5 Ma
Late/Upper Cretaceous |
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| Environment | terrestrial (based on Sauropoda) |
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| Motility | actively mobile (based on Sauropoda) |
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| Diet | herbivore (based on Sauropoda) |
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| Reproduction | oviparous, dispersal=direct/internal,mobile (based on Sauropoda) |
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| Ontogeny | accretion,modification of parts (based on Sauropoda) |
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| Taphonomy | hydroxylapatite,compact or dense,thick (based on Sauropoda) |
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| Primary Reference (PBDB) | J. F. Bonaparte. 1996. Cretaceous tetrapods of Argentina. Münchner Geowissenschaften Abhandlungen 30:73-130 |
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| Wikipedia | https://en.wikipedia.org/wiki/Rayososaurus |
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| Bonaparte J. F. (1996) Cretaceous tetrapods of Argentina, Münchner Geowissenschaften Abhandlungen 30, 73-130 |
| Bonaparte J. F. (1997) Rayososaurus agrioensis Bonaparte 1995, Ameghiniana 34 1, 116 |
| Wilson J. A., Sereno P. C. (1998) Early evolution and higher-level phylogeny of sauropod dinosaurs. Society of Vertebrate Paleontology Memoir 5, Journal of Vertebrate Paleontology 18 2 (suppl.), 1-68 |
| Gallina P. A., Apesteguía A., et al (2002) Un elefante bajo la alfombra? Los Rebbachisauridae (Sauropoda, Diplodocimorpha) del Cretácico del Gondwana. Nuevas evidencias en "La Buitrera" (Formación Candeleros), provincia de Río Negro [An elephant under the rug? Rebbachisauridae (Sauropoda, Diplodocimorpha) from the Cretaceous of Gondwana. New evidence in "La Buitrera" (Candeleros Formation), Río Negro province], Ameghiniana 39 4, suppl., 10R-11R |
| Wilson J. A. (2002) Sauropod dinosaur phylogeny: critique and cladistic analysis, Zoological Journal of the Linnean Society 136, 217-276 |
| Harris J. D., Dodson P. (2004) A new diplodocoid sauropod dinosaur from the Upper Jurassic Morrison Formation of Montana, USA, Acta Palaeontologica Polonica 49 2, 197-210 |
| Medeiros M. A., Schultz C. L. (2004) Rayososaurus (Sauropoda, Diplodocoidea) no meso-Cretáceo do norte-nordeste Brasiliero [Rayososaurus (Sauropoda, Diplodocoidea) from the mid-Cretaceous of north-northeastern Brazil], Revista Brasileira de Paleontologia 7 2, 275-279 |
| Upchurch P., Barrett P. M., et al (2004) Sauropoda, The Dinosauria (2nd edition). University of California Press, Berkeley, 259-322 |
| Dalla Vecchia F. M. (2005) Between Gondwana and Laurasia: Cretaceous sauropods in an intraoceanic carbonate platform, Thunder-Lizards: The Sauropodomorph Dinosaurs. Indiana University Press, Bloomington, 395-429 |
| Gallina P. A., Apesteguía S. (2005) Cathartesaura anaerobica gen. et sp. nov., a new rebbachisaurid (Dinosauria, Sauropoda) from the Huincul Formation (Upper Cretaceous), Río Negro, Argentina, Revista del Museo Argentino de Ciencias Naturales, nuevo serie 7 2, 153-166 |
| Remes K. (2006) A revision of the Tendaguru sauropod dinosaur Tornieria africana (Fraas) and its relevance for sauropod paleobiogeography, Journal of Vertebrate Paleontology 26 3, 651-669 doi:10.1671/0272-4634(2006)26[651:ROTTSD]2.0.CO;2 |
| Mannion P. D. (2009) A rebbachisaurid sauropod from the Lower Cretaceous of the Isle of Wight, England, Cretaceous Research 30, 521-526 doi:doi:10.1016/j.cretres.2008.09.005 |
| Carballido J. L., Garrido A. C., et al (2010) Redescription of Rayososaurus agrioensis Bonaparte (Sauropoda, Diplodocoidea), a rebbachisaurid from the early Late Cretaceous of Neuquén, Geobios 43, 493-503 doi:10.1016/j.geobios.2010.01.004 |
| Suteethorn S., Le Loeuff J., et al (2010) Description of topotypes of Phuwiangosaurus sirindhornae, a sauropod from the Sao Khua Formation (Early Cretaceous) of Thailand, and their phylogenetic implications, Neues Jahrbuch für Geologie und Paläontologie Abhandlungen 256 1, 109-121 doi:10.1127/0077-7749/2010/0036 |
| Carballido J. L., Salgado L., et al (2012) A new basal rebbachisaurid (Sauropoda, Diplodocoidea) from the Early Cretaceous of the Neuquén Basin; evolution and biogeography of the group, Historical Biology 24 6, 631-654 |
| Ibiricu L. M., Casal G. A., et al (2012) The southernmost records of Rebbachisauridae (Sauropoda: Diplodocoidea), from early Late Cretaceous deposits in central Patagonia, Cretaceous Research 34, 220-232 |
| Mannion P. D., Upchurch P., et al (2019) Taxonomic affinities of the putative titanosaurs from the Late Jurassic Tendaguru Formation of Tanzania: phylogenetic and biogeographic implications for eusauropod dinosaur evolution, Zoological Journal of the Linnean Society 185 3, 784-909 doi:10.1093/zoolinnean/zly068/5300162 |
| GBIF/Paleo Database - via The Interim Register of Marine and Nonmarine Genera |
| Muench Geowiss Abh Reihe A Geol Palaeontol 30, April - via The Interim Register of Marine and Nonmarine Genera |
| Nomenclator Zoologicus. A list of the names of genera and subgenera in zoology from the tenth edition of Linnaeus, 1758 to the end of 2004. Digitised by uBio from vols. 1-9 of Neave (ed.), 1939-1996 plus supplementary digital-only volume. http://ubio.org/NomenclatorZoologicus (as at 2006). - via The Interim Register of Marine and Nonmarine Genera |
Rayososaurus ✝
