Evidence that the evolution of mammals began in the Southern Hemisphere

Hasn&#x27;t that been pretty well established for a while?<p>I thought it well grounded that mammals had evolved on Gondwana (the southern part of Pangea) during the process of it splitting away from Laurasia, and had settled Laurasia from Gondwana<p>Gondwana was composed of now South America, Africa, India, and Australia.

Aside from the truth or falsity of this theory:<p>Why is it a matter of regional pride whether mammals (or humans) originated in your region?<p>Usually there was no nation or culture there at the time, and in this case, not even any humans.

The megafauna of south america and north america are particularly fascinating - the big predators were all marsupials.<p>Marsupial Saber Tooth Tigers.

(Disclosure: been to Oz three times &amp; I love it)<p>I hate to get all <i>ad hominem</i> here, but the fact that it comes from an Australian journal is just a tad bit self-interested. It reminds me of the Chinese scientists who keep insisting that humans evolved in China, not Africa:<p><a href="https:&#x2F;&#x2F;www.news.com.au&#x2F;technology&#x2F;science&#x2F;evolution&#x2F;chinese-academics-point-to-fossil-finds-as-evidence-modern-humans-evolved-in-southeast-asia&#x2F;news-story&#x2F;759392de611a3c7ffb5e57f97a2d4c1a" rel="nofollow">https:&#x2F;&#x2F;www.news.com.au&#x2F;technology&#x2F;science&#x2F;evolution&#x2F;chinese...</a>

No wonder mammals are afraid everything&#x27;s trying to kill them and think everything&#x27;s poisonous.

Isn&#x27;t it possible to compare dna between marsupials, mammals and monotremes and figure out which is &#x27;earlier&#x27;? The paper described depends entirely on fossils which is good but not a smoking gun.

This article talks about something called the &quot;Sherwin-Williams Effect&quot;, but DuckDuckGo doesn&#x27;t turn up any relevant results. Does anyone know what it is?

There is strong evidence that a lot of bird evolution occurred in Gondwana as well. A good book for that is Tim Low&#x27;s &quot;Where Song Began&quot;.

this article takes a spectacularly long time to get to the point of what the actual discovery was

I hate how the article asserts the new theory as fact

So then, all the invasive species are actually indigenous there* ;)<p>* This is a joke; I know how it works.

Map of the Earth - <a href="https:&#x2F;&#x2F;dinosaurpictures.org&#x2F;ancient-earth#120" rel="nofollow">https:&#x2F;&#x2F;dinosaurpictures.org&#x2F;ancient-earth#120</a> (Display Options -&gt; &quot;equator&quot; for better context)<p>DOI - <a href="https:&#x2F;&#x2F;doi.org&#x2F;10.1080&#x2F;03115518.2022.2132288" rel="nofollow">https:&#x2F;&#x2F;doi.org&#x2F;10.1080&#x2F;03115518.2022.2132288</a>

I have a lot of respect for Professor Tim Flannery - he’s a great science communicator and hosted a heap of shows in the early 2000’s.<p>He fronted a parliamentary hearing on climate change some time around 2010, where a heroic Liberal minister stated something along the lines of ‘you’re a palaeontologist, not a climate scientist, so you’re argument is invalid’. It was pretty sad to see.<p>Even being a climate scientist back then was cause for your credentials to be brought into question, let alone one from a cognate field.