Ep. 317 - Leaf Margins, Paleoclimates, and Continental Movements

In Defense of Plants Podcast

In Defense of Plants

Natural Sciences, Ecology, Nature, Plants, Botany, Science

4.8 • 1.3K Ratings

🗓️ 16 May 2021

⏱️ 64 minutes

🔗️ Recording | iTunes | RSS

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Summary

Are the leaf margins smooth or toothed? How dense are the leaf veins? Are the petioles thick or thin? The answers to these questions go far beyond helping us identify plant species. Dr. Ian Miller of the Denver Museum of Nature and Science joins us to talk about how such details in leaf fossils can be used to understand everything from the climate of the Cretaceous to the movement of continents. You will be amazed at just how much information paleobotany can provide.This episode was produced in part by Arek, Chellie, Paul, Dani, Tara, Elly, Colleen, Natalie, Liam, Ario, Nathan, Laura, Cari, Laura, Kali, Margaret, Mary, Connor, Nathan, Jan, Jerome, Brian, Melody, Azomonas, Ellie, University Greens, Cynthia, John, Ashley, Peter, Cathrine, Melvin, OrangeJulian, Porter, Grif, Jules, Joan, Les, Marabeth, Ali, Margaret, Southside Plants, Robert, Keiko, Bryce, Brittany, Helen, Amanda, Mikey, Rhiannon, Michelle, Kate, German, Joerg, Alejandra, Cathy, Jordan, Judy, Steve, Kae, Carole, Mr. Keith Santner, Dana, Chloe, Aaron, Sara, Kenned, Vaibhav, Kendall, Christina, Brett, Jocelyn, Kathleen, Ethan, Kaylee, Runaway Goldfish, Ryan, Donica, Chris, Shamora, Alana, Laura, Alice, Sarah, Rachel, Joanna, Griff, Philip, Paul, Matthew, Clark, Bobby, Kate, Steven, Brittney, McMansion Hell, Joey, Catherine, Brandon, Hall, Vegreville Creek and Wetlands Fund, Kevin, Oliver, John, Johansson, Christina, Jared, Hannah, Katy Pye, Brandon, Gwen, Carly, Stephen, Botanical Tours, Moonwort Studios, Liba, Mohsin Kazmi Takes Pictures, doeg, Clifton, Stephanie, Benjamin, Eli, Rachael, Plant By Design, Philip, Brent, Ron, Tim, Homestead Brooklyn, Brodie, Kevin, Sophia, Mark, Rens, Bendix, Irene, Holly, Caitlin, Manuel, Jennifer, Sara, and Margie.

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Transcript

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0:00.0	In Defensive Plants is made possible by all of our wonderful patrons that support the podcast each and every month over at patreon.com slash indefensive plants.
0:08.1	Their monthly contributions ensure that indefensive plants can continue to bring you amazing botanical and ecological conversations each and every week.
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0:21.4	By supporting the show, you will receive wonderful kickbacks like stickers, producer credits,
0:25.6	and access to multiple mini bonus episodes each month. Consider becoming a patron today and
0:30.5	help spread the love of plants around the globe. Hello everyone and welcome to the Indefensive
0:35.6	plants podcast, the official podcast of Indefensiveplants.com.
0:39.2	What's up? This is your host, Matt. Welcome to the show. How's everyone doing this week?
0:43.2	In this episode, we're keeping the paleobotany ball rolling. In fact, we're still focusing on that
0:48.6	end-cretaceous extinction event and how it affected plant communities. Joining us today to talk about
0:54.1	this is Dr. Ian Miller, who is the director of Earth and Space
0:57.0	Sciences and the curator of paleobotany at the Denver Museum of Nature and Science.
1:02.0	As you're going to hear, Dr. Miller is obsessed with paleobotany and how it can be used to
1:06.2	infer paleo climates, paleoecologies, and so much more.
1:09.9	And specifically today, we're going to be
1:11.6	talking about how you can use the shape of leaves in the fossil record to infer things about
1:16.5	ancient climates. Are the leaf edges toothed? Are they smooth? Are there drip tips? These sorts of
1:22.2	questions have way more implications than just simple plant anatomy. This is really fascinating work, and Dr. Miller
1:28.7	is deeply passionate about this subject, so let's just jump right into it. Without further ado,
1:33.5	here is my conversation with Dr. Ian Miller, thank you so much for coming on the podcast.
1:53.8	I'm really excited to talk to you about your research today.
1:56.3	But before we get there, let's tell everyone a little bit about who you are and what it is you do.
	...

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