Dinosaurs Rediscovered! 2021 YouTube video with Professor Mike Benton
@41:07 Benton would love for someone to find nonvolant pterosaur ancestors.
His 1999 paper indicated Scleromochlus was that ancestor. Problem is… Scleromochlus has tiny hands, no fifth toe and nests with basal bipedal crocodylomorphs.
A year later, a 2000 paper used three analyses to show that Cosesaurus, Longisquama, Sharovipteryx and Langobardisaurus were nonvolant pterosaur ancestors.
Several years later, Benton teamed with his student, David Hone, to test whether or not these four taxa were indeed pterosaur ancestors in a two-part paper (no one else has ever done this before or since and they did not look at any specimens). In part two these four taxa and citations to that 2000 paper were omitted from the study. As you can see from this video, Benton went back to square one, saying we don’t have those ancestors. Google: “timeline of pterosaur origin studies” for details.
References
Benton MJ 1999. Scleromochlus taylori and the origin of dinosaurs and pterosaurs. Philosophical Transactions of the Royal Society London, Series B 354 1423-1446.
Hone DWE and Benton MJ 2007. An evaluation of the phylogenetic relationships of the pterosaurs to the archosauromorph reptiles. Journal of Systematic Palaeontology 5:465–469.
Hone DWE and Benton MJ 2008. Contrasting supertree and total evidence methods: the origin of the pterosaurs. Zitteliana B28:35–60.
Peters D 2000b. A Redescription of Four Prolacertiform Genera and Implications for Pterosaur Phylogenesis. Rivista Italiana di Paleontologia e Stratigrafia 106 (3): 293–336.
Source: https://pterosaurheresies.wordpress.com/2024/06/24/dinosaurs-rediscovered-2021-youtube-video-with-professor-mike-benton/
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