Episode 65 - The Late Devonian Extinction(s)

The Common Descent Podcast

Common Descent

Science, Natural Sciences, Education, Earth Sciences, Science:natural Sciences

4.8 • 764 Ratings

🗓️ 14 July 2019

⏱️ 106 minutes

🔗️ Recording | iTunes | RSS

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Summary

It’s Episode 65, and you know what that means … extinction! This time, we address the ancient and confusing Late Devonian extinction. This is traditionally considered one of the “Big 5,” but it doesn’t seem to be “one” extinction at all. Geologists and paleontologists continue to work at piecing together the various causes and consequences that create an extended series – several millions years long – of very unfortunate events that altogether comprise one of the worst biological crises in Earth history. In the news: tyrannosaur smells, peccary behavior, and a talk (by us) about our podcast! Time markers: Intro & Announcements: 00:00:00News: 00:05:00Main discussion, Part 1: 00:33:30Main discussion, Part 2: 00:59:30Patron question: 01:37:30 Check out our blog for bonus info and pictures:http://commondescentpodcast.wordpress.com/ The Common Descent Store is open! Get merch! http://zazzle.com/common_descent Follow and Support us on: Patreon: https://www.patreon.com/commondescentpodcast Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast/PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw The Intro and Outro music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org. Muscial Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

Transcript

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0:00.0	You're listening to the Common Descent Podcast.
0:19.0	Hey Will. Hello, David.
0:21.9	Hello, listeners.
0:26.5	Welcome to episode 65 of the Common Descent podcast.
0:27.3	65.
0:29.2	That has a five in it.
0:30.0	Yes, it does. Which means we are back on the subject of extinction.
0:34.3	Death.
0:35.1	As is tradition.
0:36.7	This particular episode, we are talking about the mass extinction. Death. As is tradition. This particular episode, we are talking about the mass extinction of the late Devonian.
0:45.8	This is one of the big five.
0:47.6	We've gone through, this is the fourth of the big five.
0:50.3	Yeah, I mean, we're almost, we're almost out of big fives.
0:53.1	We're almost out.
0:54.4	The Devonian, the late Devonian extinction is an interesting one because it occurs around the time that, you know, vertebrates were taking off.
1:04.5	Yes.
1:05.0	Land ecosystems were really taking off.
1:07.7	In the midst of this new world, this mass extinction occurs. It's also fascinating
1:13.1	because it's probably multiple extinctions, maybe several extinctions, some of which might not
1:19.7	be extinctions at all. It's going to get real interesting. It's going to be a lot of fun. As with
1:24.8	all mass extinctions, it laid the foundation for the world as we know it. So it'll be
1:29.2	fun to discuss. Yeah. This
	...

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