کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4467259 | 1622249 | 2011 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Re-evaluation of Australodocus bohetii, a putative diplodocoid sauropod from the Tendaguru Formation of Tanzania, with comment on Late Jurassic sauropod faunal diversity and palaeoecology Re-evaluation of Australodocus bohetii, a putative diplodocoid sauropod from the Tendaguru Formation of Tanzania, with comment on Late Jurassic sauropod faunal diversity and palaeoecology](/preview/png/4467259.png)
The Late Jurassic sauropod Australodocus bohetii was originally assigned to Diplodocidae, primarily on the basis of bifurcate neural spines. The holotype and paratype materials of A. bohetii are re-examined and found to have closer affinities with Brachiosaurus and relatives than with any diplodocoid. The presence of a second titanosauriform sauropod in the Tanzanian fauna is important for understanding the palaeoecology of the region. Comparisons between Tendaguru and three other contemporaneous sauropod faunas (Morrison Formation, USA; Lourinhã and Alcobaça formations, Portugal; Cañadón Calcáreo, Argentina) are also made. The revised Tendaguru fauna, with its high diversity of high-browsing Macronarians, now more closely matches the conifer-forest dominated landscape inferred from palaeobotanical evidence. The Morrison Formation, dominated by low-browse, is once again the only formation containing multiple diplodocids.
► The diplodocoid affinities of the sauropod Australodocus bohetii are re-evaluated.
► Australodocus is most likely not a diplodocoid.
► The bulk of the evidence suggests a relationship with Brachiosaurus brancai.
► This increases the known diversity of titanosauriforms in Tendaguru.
► High titanosauriform diversity is consistent with hypotheses of conifer dominance.
Journal: Palaeogeography, Palaeoclimatology, Palaeoecology - Volume 309, Issues 3–4, 1 September 2011, Pages 333–341