农神龙科

农神龙科（学名：Saturnaliidae）是原始蜥脚形亚目恐龙的一个科，成员分布于巴西、阿根廷可能还有津巴布韦。其学名与原生动物放射虫目的一个科重复。 2010年，马丁·艾兹库拉（英语：Martin Ezcurra）为包含农神龙和颜地龙——有几项研究发现两者是近亲——的演化支定义了农神龙亚科（Saturnaliinae）。尽管有时被视为瓜巴龙科内的一个演化支， 但近来所有研究均发现农神龙亚科在蜥脚形亚目演化树基部形成一个独立谱系。无父龙（英语：Agnosphitys）曾被认为疑似属于农神龙亚科，直到2017年被发现是西里龙科成员。朗格和同事（2019年）发现平原驰龙和滥食龙是农神龙和颜地龙的近亲，并将农神龙亚科升为农神龙科（Saturnaliidae）。在那篇特别的论文中，他们发现瓜巴龙是种原始兽脚类。 此外，始盗龙、布氏盗龙、悍龙，尤其是小鶆䴈龙也可能是该演化支的成员，这一点可从它们在近期许多系统发育分析中的位置及朗格等人给出的新定义即“包含农神龙但不含板龙的最大蜥脚形亚目演化支”中看出。其中几项研究认为瓜巴龙是农神龙的远亲，还有一些认为瓜巴龙是种更原始的蜥脚形亚目或蜥臀目，更有甚者认为其与某些更衍生的分类单元如长颈龙和黑水龙有亲缘关系，而这些将不再支持农神龙属于瓜巴龙科。 Ezcurra, Martin D. A new early dinosaur (Saurischia: Sauropodomorpha) from the Late Triassic of Argentina: a reassessment of dinosaur origin and phylogeny. Journal of Systematic Palaeontology. 2010, 8 (3): 371–425. S2CID 129244872. doi:10.1080/14772019.2010.484650.  IRMNG - Saturnalidae Deflandre, 1953 †. www.irmng.org. [2021-11-24]. （原始内容存档于2023-08-01）.  Cecilia Apaldetti; Ricardo N. Martinez; Oscar A. Alcober & Diego Pol. Claessens, Leon , 编. A New Basal Sauropodomorph (Dinosauria: Saurischia) from Quebrada del Barro Formation (Marayes-El Carrizal Basin), Northwestern Argentina. PLOS ONE. 2011, 6 (11): e26964. Bibcode:2011PLoSO...626964A. PMC 3212523 . PMID 22096511. doi:10.1371/journal.pone.0026964 .  Pacheco, Cristian; Müller, Rodrigo T.; Langer, Max; Pretto, Flávio A.; Kerber, Leonardo; Dias da Silva, Sérgio. Gnathovorax cabreirai : a new early dinosaur and the origin and initial radiation of predatory dinosaurs. PeerJ. 2019-11-08, 7: e7963 [2023-08-01]. ISSN 2167-8359. PMC 6844243 . PMID 31720108. doi:10.7717/peerj.7963. （原始内容存档于2020-08-06） （英语）.  Novas, Fernando E.; Agnolin, Federico L.; Ezcurra, Martín D.; Temp Müller, Rodrigo; Martinelli, Agustín G.; Langer, Max C. Review of the fossil record of early dinosaurs from South America, and its phylogenetic implications. Journal of South American Earth Sciences. October 2021, 110: 103341 [2023-08-01]. Bibcode:2021JSAES.11003341N. doi:10.1016/j.jsames.2021.103341. （原始内容存档于2023-11-18） （英语）.  Garcia, Maurício S.; Müller, Rodrigo T.; Pretto, Flávio A.; Da-Rosa, Átila A. S.; Dias-Da-Silva, Sérgio. Taxonomic and phylogenetic reassessment of a large-bodied dinosaur from the earliest dinosaur-bearing beds (Carnian, Upper Triassic) from southern Brazil. Journal of Systematic Palaeontology. 2021-01-02, 19 (1): 1–37 [2023-08-01]. ISSN 1477-2019. S2CID 232313141. doi:10.1080/14772019.2021.1873433. （原始内容存档于2023-08-01） （英语）.  Müller, Rodrigo T. A new theropod dinosaur from a peculiar Late Triassic assemblage of southern Brazil. Journal of South American Earth Sciences. April 2021, 107: 103026. Bibcode:2021JSAES.10703026M. S2CID 229432076. doi:10.1016/j.jsames.2020.103026 （英语）.  Müller, Rodrigo Temp; Garcia, Maurício Silva. A paraphyletic 'Silesauridae' as an alternative hypothesis for the initial radiation of ornithischian dinosaurs. Biology Letters. August 2020, 16 (8): 20200417. ISSN 1744-9561. PMC 7480155 . PMID 32842895. doi:10.1098/rsbl.2020.0417 （英语）.  Müller, Rodrigo T; Langer, Max C; Bronzati, Mario; Pacheco, Cristian P; Cabreira, Sérgio F; Dias-Da-Silva, Sérgio. Early evolution of sauropodomorphs: anatomy and phylogenetic relationships of a remarkably well-preserved dinosaur from the Upper Triassic of southern Brazil. Zoological Journal of the Linnean Society. 2018-05-15 [2023-08-01]. ISSN 0024-4082. doi:10.1093/zoolinnean/zly009. （原始内容存档于2022-08-15） （英语）.  Baron, M.G.; Norman, D.B.; Barrett, P.M. A new hypothesis of dinosaur relationships and early dinosaur evolution. Nature. 2017, 543: 501–506. doi:10.1038/nature21700.  Langer, MC; McPhee, BW; Marsola, JCdA; Roberto-da-Silva, L; Cabreira, SF. Anatomy of the dinosaur Pampadromaeus barberenai (Saurischia—Sauropodomorpha) from the Late Triassic Santa Maria Formation of southern Brazil. PLoS ONE. 2019, 14 (2): e0212543. doi:10.1371/journal.pone.0212543.