Re: [dinosaur] Solenodon venom evolution since Cretaceous (free pdf)

Indeed. A recent paper looking at this problem from a phylogenomic
perspective is:

Sato, J.J., T.M. Bradford, K.N. Armstrong, S.C. Donnellan, L.M.
Echenique-Diaz, G. Begué-Quiala, J. Gámez-Díez, N. Yamaguchi, S.T. Nguyen,
M. Kita, and S.D. Ohdachi. 2019. Post K-Pg diversification of the mammalian
order Eulipotyphla as suggested by phylogenomic analyses of ultra-conserved
elements.
<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.sciencedirect.com_science_article_pii_S1055790318307152&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=J81oooJq-8g_RMIBHk-BJrZkhXLAmYyy1CZy8Ka2KuA&s=zlVFaiwhNs9pYKvC4Mu_Q4r3XJxvEm0jl88QhRmYmPw&e= >
*Molecular
Phylogenetics and Evolution* *141*: 106605. doi: 10.1016/j.ympev.2019.106605

On Wed, Nov 27, 2019 at 5:00 PM David Marjanovic <[email protected]>
wrote:

>
> solenodons and shrews following their divergence over 70 million years ago
>
> I'm pretty sure such an age is only found in miscalibrated molecular
> analyses. The entire Paleogene fossil record of what may be the total group
> of Lipotyphla (there is, of course, no Cretaceous record) used to be
> referred to "Soricomorpha" or "Erinaceomorpha"; molecular phylogenies have
> since shown that Erinaceidae and Soricidae are very closely related, so
> that most extant "erinaceomorphs" and "soricomorphs" are nothing of the
> sort, and morphology has followed suit; the following paper cautiously
> argues that there's no fossil evidence of crown-group lipotyphlans older
> than about 50 Ma. Molecular biologists tend to be unfamiliar with the
> paleontological literature and so tend to use calibration dates that are
> based on outdated understandings of the fossil record, Paleocene
> "erinaceomorphs" for example.
>
> (That's the subject of a manuscript I'm writing right now.)
>
> Tonya A. Penkrot & Shawn P. Zack (2016)
> Tarsals of Sespedectinae (?Lipotyphla) from the middle Eocene of southern
> California, and the affinities of Eocene ‘erinaceomorphs’
> Journal of Vertebrate Paleontology 36(6): e1212059
> DOI: 10.1080/02724634.2016.1212059
> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.tandfonline.com_doi_full_10.1080_02724634.2016.1212059&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=J81oooJq-8g_RMIBHk-BJrZkhXLAmYyy1CZy8Ka2KuA&s=ieXGxfN7XBG9qLr2-BHtdxMI-hjZ90l4lHXzev4yHrM&e= 
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.tandfonline.com_doi_full_10.1080_02724634.2016.1212059&d=DwMBaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=V-6NWhwiOjnlwtes_TsE-wc7eouzrULfsIPJVlMMBHk&s=2CfEckIc_cgLYUhJyteleyffq9vgJ5I8V5fOJcGgH8M&e=>
>