发一下本论文的标题和简述吧（英文版）
标题为：Taxonomic affinities of the putative titanosaurs fromthe Late Jurassic Tendaguru Formation of Tanzania:phylogenetic and biogeographic implications foreusauropod dinosaur evolution
简述为：The Late Jurassic Tendaguru Formation of Tanzania, southeastern Africa, records a rich sauropod fauna, including thediplodocoids Dicraeosaurus and Tornieria, and the brachiosaurid titanosauriform Giraffatitan. However, the taxonomicaffinities of other sympatric sauropod taxa are poorly understood. Here, we critically reassess and redescribe these prob-lematic taxa, and present the largest phylogenetic analysis for sauropods (117 taxa scored for 542 characters) to exploretheir placement in Eusauropoda. Janenschia robusta has played a prominent role in discussions of titanosaur origins,with various authors referring at least some remains to Titanosauria, a clade otherwise known only from the Cretaceous.Redescription of the holotype of Janenschia, and all referable remains, supports its validity and placement as a non-neosauropod eusauropod. It forms a clade with Haestasaurus from the earliest Cretaceous of the UK, and the Middle/LateJurassic Chinese sauropod Bellusaurus. Phylogenetic analysis and CT scans of the internal pneumatic tissue structure ofAustralodocus bohetii tentatively support a non-titanosaurian somphospondylan identification, making it the only knownpre-Cretaceous representative of that clade. New information on the internal pneumatic tissue structure of the dorsal ver-tebrae of the enigmatic Tendaguria tanzaniensis, coupled with a full redescription, results in its novel placement as a turia-saur. Tendaguria is the sister taxon of Moabosaurus, from the Early Cretaceous of North America, and is the first turiasaurrecognized from Gondwana. A previously referred caudal sequence cannot be assigned to Janenschia and displays severalfeatures that indicate a close relationship with Middle–Late Jurassic East Asian mamenchisaurids. It can be diagnosed bysix autapomorphies, so we erect the new taxon Wamweracaudia keranjei gen. et sp. nov. The presence of a mamen-chisaurid in the Late Jurassic of southern Gondwana indicates an earlier and more widespread diversification of this cladethan previously realized, prior to the geographic isolation of East Asia. Our revised phylogenetic dataset sheds light on theevolutionary history of Eusauropoda, including supporting a basal diplodocoid placement for Haplocanthosaurus, and elu-cidating the interrelationships of rebbachisaurids. The Tendaguru Formation shares representatives of nearly all sauropodlineages with Middle Jurassic–earliest Cretaceous global faunas, but displays a greater range of diversity than any of thosefaunas considered individually. Biogeographic analysis indicates that the Tendaguru sauropod fauna was assembled as aresult of three main phenomena during the late Early and/or Middle Jurassic: (1) invasions from Euramerica (brachiosau-rids, turiasaurs); (2) endemism in west Gondwana (dicraeosaurids, diplodocids); and (3) regional extinctions that restrictedthe ranges of once widespread groups (mamenchisaurids, the Janenschia lineage). Multiple dispersals across the CentralGondwanan Desert are required to explain the distributions of Jurassic sauropods, suggesting that this geographic featurewas at most a filter barrier that became easier to cross during the late Middle Jurassic.
论文连接为：
https://pan.baidu.com/s/1ZiES1A3xeO_Ia4HA99tSPA 
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