Re: [dinosaur] Would non-avian dinosaur survive through the whole Cenozoic?

"There was a slow-down in speciation rates prior to the K-Pg, see:


Sakamoto, M.; Benton, M. J. & Venditti, C.
Dinosaurs in decline tens of millions of years before their final extinction
*Proceedings of the National Academy of Sciences, **2016**, 113*, 5036-5040
https://urldefense.proofpoint.com/v2/url?u=https-3A__www.pnas.org_content_early_2016_04_13_1521478113.abstract&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=JMxjjbIZXCWilersPs1bzRx-3mUwTiQUzlyzWk7v7k4&m=KGmSsdr77PivypnTe1zH2WGdaP9OEdACChESwR1p_cg&s=l5NCXM4Les4OxHVjQpdVVQHxaXiIzhqa23f3uOF3riQ&e= 
<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.pnas.org_content_early_2016_04_13_1521478113.abstract&d=DwMDaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=JMxjjbIZXCWilersPs1bzRx-3mUwTiQUzlyzWk7v7k4&m=5GiDV_YLHqBrZRbDC-66KwSOjfg-kH_05d2CfGkbOJw&s=XKy87RAH9LDLKNVcXp5Rz28pTiz-_WZ7uJps4MRTA4E&e=>
"

Well, maybe. There are sampling issues that might be going on:
Chiarenza, A.A., Mannion, P.D., Lunt, D.J. *et al.* Ecological niche
modelling does not support climatically-driven dinosaur diversity decline
before the Cretaceous/Paleogene mass extinction. *Nat Commun* 10, 1091
(2019) doi:10.1038/s41467-019-08997-2

https://urldefense.proofpoint.com/v2/url?u=https-3A__www.nature.com_articles_s41467-2D019-2D08997-2D2&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=JMxjjbIZXCWilersPs1bzRx-3mUwTiQUzlyzWk7v7k4&m=KGmSsdr77PivypnTe1zH2WGdaP9OEdACChESwR1p_cg&s=yB-z2x0_l4WcxLX1NY1S3wZZ6viyly55QSzuLC7bhSQ&e= 

On Wed, Dec 4, 2019 at 2:59 PM Mailing <[email protected]>
wrote:

> There was a slow-down in speciation rates prior to the K-Pg, see:
>
> Sakamoto, M.; Benton, M. J. & Venditti, C.
> Dinosaurs in decline tens of millions of years before their final
> extinction
> *Proceedings of the National Academy of Sciences, **2016**, 113*,
> 5036-5040
> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.pnas.org_content_early_2016_04_13_1521478113.abstract&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=JMxjjbIZXCWilersPs1bzRx-3mUwTiQUzlyzWk7v7k4&m=KGmSsdr77PivypnTe1zH2WGdaP9OEdACChESwR1p_cg&s=l5NCXM4Les4OxHVjQpdVVQHxaXiIzhqa23f3uOF3riQ&e= 
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.pnas.org_content_early_2016_04_13_1521478113.abstract&d=DwMDaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=JMxjjbIZXCWilersPs1bzRx-3mUwTiQUzlyzWk7v7k4&m=5GiDV_YLHqBrZRbDC-66KwSOjfg-kH_05d2CfGkbOJw&s=XKy87RAH9LDLKNVcXp5Rz28pTiz-_WZ7uJps4MRTA4E&e=>
> On 04/12/2019 19:16, David Marjanovic wrote:
>
> Gesendet: Mittwoch, 04. Dezember 2019 um 16:51 Uhr
> Von: "Poekilopleuron" <[email protected]> <[email protected]>
>
> in his book "Dinosaurs Rediscovered", professor Mike Benton states that even if non-avian dinosaurs survived the K-Pg event, they would probably eventually perish some 50 or 40 million years ago (due to climatic changes and/or other perturbations). This is because of their limited ability to evolve new species in the last millions of years of the Cretaceous.
>
> There is no such thing as an inherent "ability to evolve new species" that doesn't depend on the environment, which changes.
>
> The idea that few new species _did_ evolve in the last few million years of the Cretaceous has long been abandoned: it was based simply on the fact that the Campanian record of North America is better than the Maastrichtian record of North America.
>
>

-- 

Thomas R. Holtz, Jr.
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