Do takich samych wniosków doszli Gorscak i in. na podstawie analizy Bayesiańskiej:Dino pisze:Currie i inni opisują nowy materiał należący prawdopodobnie do nemegtozaura, wspierając wcześniejsze hipotezy m.in. Daniela Madzi (jest cytacja) o synonimice nemegtozaura i opistocelikaudii.
Źródło: Gorscak, E., P. M. O'Connor, E. M. Roberts, and N. J. Stevens. 2017. The second titanosaurian (Dinosauria: Sauropoda) from the middle Cretaceous Galula Formation, southwestern Tanzania, with remarks on African titanosaurian diversity. Journal of Vertebrate Paleontology. DOI: 10.1080/02724634.2017.1343250.For example, in the tip-dated Bayesian topology (Fig. 14C), the strict reading of the topology suggests that the Late Cretaceous Mongolian titanosaurians Nemegtosaurus and Opisthocoelicaudia were sister taxa, or potentially the same genus, within the Eurasian clade of titanosaurians (Paul, 1996; Wilson, 2005; Currie and Fanti, 2017). This may seem like an odd result given that Nemegtosaurus is known from a skull and Opisthocoelicaudia from postcrania. However, the temporal information taken from stratigraphic data, the tree and morphological evolution models (Lewis, 2001; Stadler et al., 2013), at least some cranial characters with other taxa (e.g., basioccipital depression between foramen magnum and basal tubera in Lirainosaurus and longitudinal groove of supraoccipital in Ampelosaurus), and autapomorphic characters used to inform terminal branch lengths are all pieces of evidence used to jointly estimate the potential placements of Nemegtosaurus from the sample of topologies despite missing data (e.g., see discussion on missing data in Ronquist et al., 2012a; Lee et al., 2014; Wright and Hillis, 2014; and Guillerme and Cooper, 2016). At the very least, the posterior probabilities are there as a gauge of the inherent uncertainty of the estimated topology where model-based approaches tend to be more accurate at the cost of precision when compared with parsimony (O'Reilly et al., 2016).
Jestem pod ogromnym wrażeniem algorytmów, które "domyśliły" się tego bez jakiejkolwiek wspólnej informacji morfologicznej
. Muszę się nauczyć tej techniki.
