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Post by Infinity Blade on Dec 20, 2019 21:16:53 GMT 5
Thanks to Verdugo for posting this elsewhere. This is rather old news (2017), but apparently they found what appear to be sternal ribs from a Tyrannosaurus specimen. If they are sternal ribs, they would be the first sternal elements identified in a tyrannosaur. worldtreasures.org/blog/research-update-on-ivan |
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Post by creature386 on Dec 26, 2019 15:24:08 GMT 5
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Post by Infinity Blade on Jan 10, 2020 7:04:13 GMT 5
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Post by Ceratodromeus on Jan 11, 2020 23:42:37 GMT 5
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Post by dinosauria101 on Jan 13, 2020 22:57:36 GMT 5
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Post by creature386 on Jan 18, 2020 16:48:44 GMT 5
The Deccan traps stopped being a problem for dinosaurs 200,000 years before the Chicxulub impact. In other words, Chicxulub takes the full blame for the extinction, while the volcanic eruptions at the end of the Cretaceous were a minor factor at best: www.nytimes.com/2020/01/16/science/dinosaurs-extinction-meteorite-volcano.htmlOn a related note, nice to see that the GFZ Helmholtz Center in Potsdam played a part in the research, considering I was there for a few days. (I get that Infinity Blade posted the same in the Recommended Literature thread, but I considered the NYTimes article nice enough for sharing.) |
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Post by creature386 on Jan 19, 2020 0:54:03 GMT 5
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Post by Infinity Blade on Jan 19, 2020 2:05:57 GMT 5
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Post by Ceratodromeus on Jan 22, 2020 9:49:01 GMT 5
A large sized megalosaurid (Theropoda, Tetanurae) from the late Jurassic of Uruguay and Tanzania  Abstract We report the first Jurassic remains that can confidently be referred to a megalosaurine theropod in Uruguay and Tanzania. This identification is sustained on a detailed morphological study. The large size of both teeth (>70 mm in lateral teeth) and denticles (<7 denticles per 5 mm), the clearly visible braided enamel texture, the centrally placed and apically restricted mesial carina in mesial teeth, and general shape of the teeth strongly resembles Torvosaurus. This is coherent with multivariate analyses of two datasets of large theropod teeth measurements, and also with the results of a phylogenetic analysis of theropod teeth. The presence of Torvosaurus in the Tacuarembó Formation of Uruguay further strengthens the Late Jurassic age proposed for the fossiliferous horizon. The Uruguayan megalosaurid would represent the apex predator in the vertebrate assemblage. The occurrence of megalosaurids in the Late Jurassic of Uruguay (the first unquestionable megalosaurid from South America) and Tanzania also greatly expands the geographical range of the family. www.sciencedirect.com/science/article/abs/pii/S089598111930505X |
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Post by dinosauria101 on Jan 23, 2020 6:08:47 GMT 5
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Post by dinosauria101 on Jan 25, 2020 16:02:05 GMT 5
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Post by dinosauria101 on Feb 4, 2020 0:33:22 GMT 5
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Post by Infinity Blade on Feb 5, 2020 3:52:14 GMT 5
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Post by dinosauria101 on Feb 5, 2020 15:57:02 GMT 5
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Post by Infinity Blade on Feb 17, 2020 6:50:38 GMT 5
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