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Congruence between Middle Jurassic sauropod distribution and paleoclimatic zones.

Although standing close to the origin of Eusauropoda, Spinophorosaurus exhibits strong similarities to East Asian Middle Jurassic sauropods (Shunosaurus, 6), and much less so to South Gondwanan forms, e.g. the late Lower Jurassic Barapasaurus from India and the late Middle Jurassic form Patagosaurus (1). The explanation is a separation of global sauropod faunas during the Lower Jurassic by the Central Gondwanan Desert (CGD), forming two different paleobiogeographical domains. Neosauropods had their origin in the same climatic zone as Spinophorosaurus and gained global distribution in late Middle Jurassic times (Atlasaurus, 4; Bellusaurus, 6; Lapparentosaurus, 2; Tehuelchesaurus, 1). Map redrawn after [48] and [75]. Abbreviations: CT, cold temperate climate; WT, warm temperate climate; SW, summer-wet climate; WW, winter-wet climate.
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Source https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0006924
Author Remes K, Ortega F, Fierro I, Joger U, Kosma R, et al.
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Date/TimeThumbnailDimensionsUserComment
current20:02, 16 March 2019Thumbnail for version as of 20:02, 16 March 20192,059 × 1,026 (187 KB)FunkMonkCrop.
11:56, 9 March 2019Thumbnail for version as of 11:56, 9 March 20192,087 × 1,054 (203 KB)FunkMonk{{Information |Description=Congruence between Middle Jurassic sauropod distribution and paleoclimatic zones. Although standing close to the origin of Eusauropoda, Spinophorosaurus exhibits strong similarities to East Asian Middle Jurassic sauropods (Shunosaurus, 6), and much less so to South Gondwanan forms, e.g. the late Lower Jurassic Barapasaurus from India and the late Middle Jurassic form Patagosaurus (1). The explanation is a separation of global sauropod faunas during the Lower Jurass...

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