Title: Computed tomographic analysis of the cranium of the early Permian recumbirostran 'microsaur' Euryodus dalyae reveals new information of the braincase and mandible. Authors: B.M. Gee, J.J. Bevitt, R.R. Reisz Journal: Papers in Palaeontology DOI to paper: 10.1002/spp2.1304
Title: Postcranial anatomy and histology of Seymouria, and the terrestriality of seymouriamorphs Authors: K.D. Bazzana; B.M. Gee; J.J. Bevitt; R.R. Reisz Journal: PeerJ vol. 8, article #8698 DOI to paper: 10.7717/peerj.8698 General summary: Back again with some more non-temnospondyl things (those are basically the rest of the papers I have coming out in the near future) on the amniote stem with Seymouria. The last paper led by Kayla looked at braincase anatomy based on some super neutron-CT datasets for Richards Spur material. This one is again looking at Seymouria from Richards Spur, but in the postcranial skeleton this time. Somewhat unusual for early Permian tetrapods, there is a substantial record of the postcranial skeleton for Seymouria based on fully articulated specimens from Germany and the redbeds of the southwest. However, most of the postcrania hasn't been described in great detail, and there's been very few records of postcrania from Richards Spur. This paper rectifies both of those to a degree, with description of really well-preserved isolated postcrania from the site that expands the osteology and knowledge of ontogenetic changes.
Title: Size matters: the effects of ontogenetic disparity on the phylogeny of Trematopidae (Amphibia: Temnospondyli) Authors: B.M. Gee Journal: Zoological Journal of the Linnean Society, no. 170 (Advance Articles) DOI to paper: 10.1093/zoolinnean/zlz170 General summary: Phylogenies represent our inference of the relationships between different organisms, and can be as broad-scale as all living things to as fine scale as species of rhinos. It is of course an inference because in very few instances can be observe or capture speciation in short time intervals, and reconstructing the relationships of long-extinct taxa, especially those without close living relatives, is even more complicated. Phylogenies are therefore very controversial because there are a slew of different ways that one can go about doing one, and different scientists have different preferences. Which taxa are included, which features are analyzed, and how each taxon is "scored" for each feature can vary widely across studies, which unsurprisingly produces very different results and in turn, very different scenarios of evolutionary history (e.g., temporal origin, rates of diversification, geographic origin, relation to modern taxa, etc.). The hot topic in early tetrapod research right now is early amniote phylogeny, particularly with respect to parareptiles, 'microsaurs,' and varanopids. That doesn't mean that there isn't a lot of work to do with temnospondyls though, which of course is what this paper is about!
Title: A re‐description of the late Carboniferous trematopid Actiobates peabodyi from Garnett, Kansas Authors: B.M. Gee, R.R. Reisz Journal: Anatomical Record DOI to paper: 10.1002/ar.24381
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About the blogA blog on all things temnospondyl written by someone who spends too much time thinking about them. Covers all aspects of temnospondyl paleobiology and ongoing research (not just mine). Categories
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