Posts

Correcting an error I made:

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 Hello everyone, A few weeks ago I published a blogpost talking about Doran and McLain's (2022) analysis on the Ankylosauria. I made a mistake in that post saying that Doran et al. (2018) gave reasonable evidence to suggest four holobaramins within the Ankylosauria. That was a mistake, I misread the paper, but upon closer inspection of the Doran et al. (2018) study, I realized I had made a mistake.  See, Doran et al. 2018 ran analyses on two datasets, one from Vickaryous et al. (2004) and another from Zheng et al. (2018) (the latter is the same one Doran & McLain [2022] used). The BDC (Fig. 63) on the 2004 dataset was where I made the mistake. I read the graph as showing four groups with significant negative correlation surrounding each group. But if you look closer, The group at the top right is the outgroup (Lesothosaurus + Huayangosaurus) and the 'group' right to its left ( Gastonia + Gargoleosaurus ) is actually a part of the larger Nodosauridae group ( Edmontonia ....

Origins Conference 2022 part 2: Doran and McLain´s Ankylosauria analysis

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  Biology abstracts https://coresci.org/jcts/index.php/jctsb/issue/view/31 Geology Abstracts https://coresci.org/jcts/index.php/jctsc/issue/view/32 T he annual Origins conference is one of the foremost creationist conferences involving multiple disciplines, primarily: biology, geology, and theology. In this series of posts, I will review the published works this year that I can comment on, unfortunately, I cannot comment on most of what occurred since it is simply outside of my field and I don´t understand it.  N.A. Doran and M.A. McLain 2022 “The Ankylosauria: A Bottom-Heavy Holobaramin?” Euoplocephalus tutus,  an Ankylodaurid from North America. Drawing by Scott Hartman (C) 2018.  Unlike my previous review of McLain´s (2022) analysis on pterosaurs, I can comment on Ankylosaurs. Ankylosaurs are some of the most iconic dinosaurs the world has ever seen, the group´s namesake Ankylosaurus  has appeared in the Jurassic World franchise frequently and several other m...

Origins Conference 2022 part 1: McLain´s basal pterosaur analysis

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Biology abstracts https://coresci.org/jcts/index.php/jctsb/issue/view/31 Geology Abstracts https://coresci.org/jcts/index.php/jctsc/issue/view/32 T he annual Origins conference is one of the foremost creationist conferences involving multiple disciplines, primarily: biology, geology, and theology. In this series of posts, I will review the published works this year that I can comment on, unfortunately, I cannot comment on most of what occurred since it is simply outside of my field and I don´t understand it.  McLain M. 2022 ¨ New Baraminological Analysis of “Basal” Pterosaurs Confirms Multiple Holobaramins¨ McLain analyzed a brand-new dataset of ´basal´ Pterosaurs by Yang et al. 2022 (286 characters and 41 taxa) using BARCLAY (Wood 2020b). Previous analyses (McLain 2021) were inconclusive regarding the state of holobaramins, except the family Anurognathidae showing the possibility of it being a holobramin. The new analysis showed the possibility of four holobaramins within the ´bas...