The Common Descent Podcast

This is a listener-requested topic and a guest episode! We are joined by super-special guest Michelle Barboza-Ramirez of the Femmes of STEM podcast, who is here to help us explore the deep subject of Women in Paleontology. We talk about female scientists past and present, discuss the challenges they face, and reflect on the broad questions of diversity in the field of paleontology and other sciences. In the news: baby saber-tooths; Triceratops brains; surprises in dinosaur poop; and super-ancient trilobite guts! Time markers: Intro & Announcements: 00:00:00 News: 00:06:30 Main discussion: 00:31:30 HUGE thanks to Michelle for helping us out! Find her at www.femmesofstem.com! Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

In the second part of our exploration of our own evolutionary past, we focus in on one particular recent group of big-brained, bipedal hominins. We explore their incredible diversity, their clever creations, and the origins of a species that we know better than any other. In the news: Neanderthal plaque; very surprising footprints; our tiny mysterious cousins; and an ancient sugary secret. Time markers: Intro & Recap: 00:00:00 Main discussion: 00:03:30 News: 01:03:00 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

This time, by request, we discuss an ancient story so detailed, compelling, and important that we had to split it in two! In part one, we find our own place on the family tree of life, and trace the history and evolutionary innovations of our ancestors and cousins: the early hominins. In the news: four-flippered swimming; the life of a dodo; weird whale teeth; and the many possible paths of evolution. Time markers: Intro & Announcements: 00:00:00 News: 00:03:30 Main discussion: 00:33:30 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

In this episode, David tells tales of his trip to Calgary for this year’s SVP meeting: research presentations; meeting new people; paleo-field trips in Alberta; and more. If you’re into vertebrate paleontology, this is one of the biggest and more exciting events of the year! In the news: several hundred research projects presented by paleontologists from all over the world, who came together at the end of August for the annual meeting of the Society of Vertebrate Paleontology! We mention just a few of these studies. Time markers: Intro & Announcements: 00:00:00 Main discussion (with News throughout): 00:04:00 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

This episode, by request, we’re talking about one of our favorite groups of invertebrates! Specifically, invertebrates with big brains and squiggly arms - some with beautiful shells and others with incredible camouflage - and a fantastically rich fossil record stretching back over 500 million years: the cephalopods. In the news: a giant gets a name; a confusing early dinosaur; some really old ice; and a rockstar croc. Time markers: Intro & Announcements: 00:00:00 News: 00:02:00 Main discussion: 00:30:00 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

This episode, we’re talking mass extinction again! Last time, we touched on the event that ended the Age of Dinosaurs, but this time – by listener request! – we’re discussing the event that started it: patterns and potential causes of the end-Triassic mass extinction. In the news: a colorful armored giant; a surprise apex predator; epigenetics and variation; and some fast-evolving big-headed geckos! Time markers: Intro & Announcements: 00:00:00 News: 00:04:00 Main discussion: 00:35:00 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

This episode, we finally take the time to talk in detail about the dig site we mention more than any other, the site where we both spent many years: the Gray Fossil Site! We discuss the site’s discovery, ongoing work, ancient ecosystem, and some of our own experiences. In the news: the speed of T. rex, warm-blooded evolution, dinosaur sails, and the earliest Australians. Time markers: Intro & Announcements: 00:00:00 News: 00:05:30 Main discussion: 00:31:00 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

And now for something completely different! Just how deep is Deep Time? Exactly how are important events arranged throughout our planet’s history? Which events are recent and which are ancient? In this special episode, we take a tour through Earth History, from beginning to end, one million years per second: a virtual trip through geologic time! Time markers: Intro & Announcements: 00:00:00 Tour Through Time: 00:04:30 Follow and Support us on: Patreon: https://www.patreon.com/commondescentpodcast Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

The episode comes to you from inside the fossil prep lab, where we explore what goes into cleaning, repairing, and generally making fossils ready for study. We are joined by our friend Shawn Haugrud, as well as two of his lab’s head preparators: Shayleigh Maden and Davis Gunnin! In the news: swimming strategies of plesiosaurs, surprise marine mass extinction, a bone-crushing Jurassic croc, and the temperature of dinosaur eggs. Time markers: Intro & Announcements: 00:00:00 News: 00:05:00 Main discussion: 00:32:30 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

This episode is about the history of the earth, and how we compile all that we know about the ancient past in the great Geologic Time Scale. In the news: the shapes of bird eggs, very ancient amphibians, more dinosaur faces, and the history of hippos. Time markers: Intro & Announcements: 00:00:00 News: 00:03:00 Main discussion: 00:32:00 Patron announcements & question: 01:32:00 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

This episode is another listener-requested topic! We’re discussing the fascinating and mysterious continent of Antarctica, its long complex history, and the rare and intriguing fossils that are found there. In the news: a baby bird in amber, ancient elephant genetics, surprisingly early humans, and the formation of a famous dinosaur site. Time markers: Intro & Announcements: 00:00:00 News: 00:02:30 Main discussion: 00:33:00 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ Follow and Support us on: Patreon: https://www.patreon.com/commondescentpodcast Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

We’re back for another digression! Another new study is making (ridiculous) headlines all across the internet! It’s the first published investigation of Tyrannosaurus scales, by Bell et al., and it has people asking: where are the feathers? You can access the study itself here: http://rsbl.royalsocietypublishing.org/content/13/6/20170092 Follow and Support us on: Patreon: https://www.patreon.com/commondescentpodcast Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

This episode, we’re taking the time to talk about a subject that comes up just about every episode: the classification and relationships of living organisms. Taxonomy, Phylogeny, and the Tree of Life! In the news: giant ground sloth diets, how whales got huge, the crunching jaws of T. rex, and the evolution of soldier bees! Time markers: Intro & Announcements: 00:00:00 News: 00:05:30 Main discussion: 00:28:00 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ Follow and Support us on: Patreon: https://www.patreon.com/commondescentpodcast Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

In this episode, we’re discussing the dramatic event that saw the rise of modern animal life and formed the foundation for all animal ecosystems – an event as fascinating as it is mysterious – the Cambrian Explosion! In the news: brand new armored dinosaurs, a long-lost dino-baby, surprises from the human family tree, and snake fossils from our favorite fossil site! Time markers: Intro & Announcements: 00:00:00 News: 00:04:00 Main discussion: 00:37:30 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

This episode topic comes from a fan request! We’re discussing how lessons from our planet’s prehistoric record can guide our efforts to preserve modern ecosystems: this is the field of conservation paleontology. In the news: sword-tailed sea scorpions, finding ancient DNA without fossils, climate change during the end-Pleistocene extinction, and (maybe) the oldest humans in North America! Time markers: Intro & Announcements: 00:00:00 News: 00:04:30 Main discussion: 00:31:00 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

In this episode, we are joined by special guest Ethan Fulwood! He shares with us the fascinating diversity and evolutionary history of a familiar group of mammals called Primates. In the news: an ancient dinosaur-cousin, bats with diverse diets, and ancient predator injuries. Ethan’s on Twitter! @fulwoodomys Time markers: Intro & Announcements: 00:00:00 News: 00:02:00 Main discussion: 00:25:00 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

On this episode, we’re discussing one of nature’s most incredible inventions: flight – who has it, how do they do it, and most mysteriously, how did it evolve? In the news: Dinosaur footprints; tyrannosaur faces; life in a crater; and a beautiful ancient bird. Time markers: Intro & Announcements: 00:00:00 News: 00:02:30 Main discussion: 00:29:30 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

Some big dinosaur-related news dropped last week - so big we just had to talk about it! So here's a mini-episode (a small digression) about the new study by Baron et al., and the phenomenon that has paleontologists going crazy: Ornithoscelida. Read more about the study here: https://www.theatlantic.com/science/archive/2017/03/dinosaur-family-tree-saurischia-ornithischia-childhood-shattered-what-is-real-anymore/520338/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

In this episode, we discuss one of the most famously devastating events in Earth history – the mass extinction that ended the Age of Dinosaurs. In the news: the first fish on land, the earliest sharks, some really old croc eggs, and some really really old plants! Time markers: Intro & Announcements: 00:00:00 News: 00:02:00 Main discussion: 00:30:00 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

In this episode, we’re exploring the unique and sometimes bizarre directions evolution takes on islands. In the news: ancient tortoise DNA, a better picture of dinosaurs, oyster conservation, and a giant scary worm! Time markers: Intro & Announcements: 00:00:00 News: 00:07:00 Main discussion: 00:31:30 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

This time around the topic is David’s favorite group of life: snakes. We look at their impressive diversity, their mysterious origins, and their long fossil history. In the news: live-birth in archosaurs, ancient venom, horse evolution, and carnivorous plants! Time markers: Intro & Announcements: 00:00:00 News: 00:02:00 Main discussion: 00:28:30 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ 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=2 The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

We’re back for Episode 2! This episode we’re talking about Will’s favorite group of animals: crocodilians, their fascinating modern diversity, and their even more astonishing fossil history. In the news: our bag-like ancestors, dinosaur proteins, giant otters, and Australian extinctions! Time markers: Intro & Announcements: 00:00:00 News: 00:02:30 Main discussion: 00:27:00 Check out our blog for bonus info and pictures: https://commondescentpodcast.wordpress.com/ 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=2 The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

It’s the first episode of the Common Descent Podcast! Episode One’s discussion topic is the field of paleontology, our own experiences, and the kinds of things we’ll end up talking about in future episodes. In the news: pterosaurs, sunspots, trilobites, and ghost sharks! Time markers: Intro & Announcements: 00:00:00 News: 00:03:00 Main discussion: 00:32:00 Check out the blog for bonus stuff: https://commondescentpodcast.wordpress.com/ Follow us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast/ The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org/