What can I say? The Romans knew how to throw one humdinger of a party. And if you dive deeply into the history books, you’ll discover this week-long festival was celebrated in the old days with lots of drink, food, and making whoopee. It was also a time when traditional social roles were reversed, and slaves and masters would swap places (kind of like Boxing Day). The festival was distinguished by gift-giving, feasting, and merrymaking. It was originally a one-day event, but eventually expanded to a week-long celebration. ![]() S2CID 128421960.Saturnalia was a Roman festival that honored the god Saturn. "A new specimen of Guaibasaurus candelariensis (basal Saurischia) from the Late Triassic Caturrita Formation of southern Brazil". ^ Bonaparte J.F., Brea G., Schultz C.L., Martinelli A.G."The pelvic and hind limb anatomy of the stem-sauropodomorph Saturnalia tupiniquim (Late Triassic, Brazil)". ![]() "U-Pb age constraints on dinosaur rise from south Brazil". The Princeton Field Guide to Dinosaurs (2nd ed.). " A sauropodomorph dinosaur from the Upper Triassic (Carnian) of southern Brazil." Comptes Rendus de l'Académie des Sciences, 329: 511- 517. ^ a b c d Langer, M.C., Abdala, F., Richter, M., and Benton, M.However, all more recent cladistic analyses found it to be a very basal sauropodomorph, possibly guaibasaurid, as the family was found to nest in a basal position within Sauropodomorpha. Overall, Bonaparte found that both Saturnalia and Guaibasaurus were more theropod-like than prosauropod-like. Like Langer, Bonaparte found that these forms may have been primitive sauropodomorphs, or an assemblage of forms close to the common ancestor of the sauropodomorphs and theropods. Bonaparte placed the two in the same family, Guaibasauridae. José Bonaparte and colleagues, in a 2007 study, found Saturnalia to be very similar to the primitive saurischian Guaibasaurus. However, in a 2003 paper, Langer noted that features of its skull and hand were more similar to the theropods, and that Saturnalia could at best be considered a member of the sauropodomorph "stem-lineage", rather than a true member of that group. Paleontologist Max Cardoso Langer and colleagues, in their 1999 description of the genus, assigned it to the Sauropodomorpha. The primitive nature of Saturnalia, combined with its mixture of sauropodomorph and theropod characteristics, has made it difficult to classify. The specific name is derived from Portuguese and Guarani word meaning native. The generic name is derived from Saturnalia, Latin for "Carnival", in reference to the discovery of the paratypes during the feasting period. Benton in 1999 and the type species is Saturnalia tupiniquim. Langer, Fernando Abdala, Martha Richter, Michael J. A U→Pb ( Uranium decay) dating found that the Santa Maria Formation dated around 233.23 million years ago, putting it 1.5 million years older than the Ischigualasto Formation, and making the two formations approximately equal as the earliest dinosaur localities. It probably grew to about 1.5 meters (5 ft) long and 4 kilograms (8.8 lb). ![]() It is one of the oldest true dinosaurs yet found. All specimens were collected in the "Wald-Sanga" (also known as "Sanga do Mato") locality from the Alemoa Member of the Santa Maria Formation (Rosário do Sul Group), dating to the Carnian faunal stage of the early Late Triassic, about 228 million years ago. The two paratypes are MCP 3845-PV, partial skeleton including natural cast of partial mandible with teeth and some postcranial remains, and MCP 3846-PV, partial skeleton including postcranial remains. The holotype, MCP 3844-PV, a well-preserved semi- articulated postcranial skeleton, was discovered in mid-summer at Sanga da Alemoa, Rio Grande do Sul, in Brazil, in the geopark of Paleorrota. Saturnalia was originally named on the basis of three partial skeletons.
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