Benoit et al. 2021 wonder if varanopids may in fact belong to Diapsida
Answer:
Varanopids are basal to synapsids AND non-lepidosaur diapsids. We’ve known this for about a decade in the large reptile tree (LRT, 183+ taxa, subset Fig. 1).
The Benoit et all 2021 study suffers from taxon exclusion
and from trying to ‘Pull a Larry Martin’ by examining only the maxillary canals of several cherry-picked taxa using µCT scans without a valid phylogenetic context (Fig. 1). These authors had no idea that lepidosaur diapsids are NOT related to archosauromorph diapsids.
References
Benoit J, Ford DP, Miyamae JA and Ruf I 2021. Can maxillary canal morphology inform varanopod phylogenetic affinities? Acta Palaeontologica Polonica 66 (x): xxx?xxx, 2021. https://doi.org/10.4202/app.00816.2020
Diapsida
Archosauromorpha – Lepidosauromorpha split in the Viséan
Source: https://pterosaurheresies.wordpress.com/2021/04/24/benoit-et-al-2021-wonder-if-varanopids-may-in-fact-belong-to-diapsida/
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