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    <lastmod>2025-06-18</lastmod>
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    <loc>http://rileyblack.net/talks-and-events/2025/3/7/bewhiskered</loc>
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    <lastmod>2024-07-24</lastmod>
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    <loc>http://rileyblack.net/talks-and-events/2024/9/20/cozycon</loc>
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    <lastmod>2024-07-24</lastmod>
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    <loc>http://rileyblack.net/talks-and-events/2025/1/30/earthx</loc>
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    <loc>http://rileyblack.net/talks-and-events/2024/11/14/big-bend-national-park</loc>
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    <lastmod>2024-06-28</lastmod>
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  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone</loc>
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    <lastmod>2026-08-05</lastmod>
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      <image:title>Blog: Tooth and Bone</image:title>
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  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/2026/8/5/flowers-for-dinosaurs</loc>
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    <priority>0.5</priority>
    <lastmod>2026-08-05</lastmod>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/e1f84564-b321-41d9-8ecc-016baac6ee7b/Low-Res_Lee+adw9457+image+1.jpeg</image:loc>
      <image:title>Blog: Tooth and Bone - Flowers For Dinosaurs - Make it stand out</image:title>
      <image:caption>Fossils from the Cretaceous of New Mexico indicate that forests rife with flowering plants were common millions of years earlier than previously thought. Credit: Brian Engh, livingrelicproductions.com</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/cf2340d7-a30f-4770-92ba-37efea32d819/fossilseeds.png</image:loc>
      <image:title>Blog: Tooth and Bone - Flowers For Dinosaurs - Make it stand out</image:title>
      <image:caption>Seeds from the Jose Creek Formation, small seeds to the left and larger diaspores to the right. Credit: Cindy Looy and Jaemin Lee/UC Berkeley</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/underwater-seals-can-hear-you-bark</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-07-29</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/7fd3e9c4-c277-4e66-b562-424f5285d943/underwatercall.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Underwater, Seals Can Hear You Bark - Make it stand out</image:title>
      <image:caption>Pick up, it’s Devinophoca calling. Credit: Jaime Bran</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/419f03b5-6134-40a9-baf0-50788facc17d/pinnipedhearing.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Underwater, Seals Can Hear You Bark - Make it stand out</image:title>
      <image:caption>Land-dwelling canids don’t have the specializations that pinnipeds do for hearing underwater as well as through the air. From Rule et al. 2026.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/guess-what-protomammal-butt</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-07-22</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/6f3dd9f3-8eb8-4afa-80cb-112abdb47bdd/cloaca.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Guess What? Protomammal Butt - Make it stand out</image:title>
      <image:caption>A tail impression most likely made by a type of protomammal called a caseid. Near the top right, a V-shaped notch indicates the animal’s cloaca. Credit: Museum für Naturkunde Berlin</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/af088b71-9a23-4818-805e-3de7efd38442/skeleton.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Guess What? Protomammal Butt - Make it stand out</image:title>
      <image:caption>A skeleton of Martensius, lacking the skull. Despite the animal’s lizard-like appearance, Martensius was more closely related to us. Credit: Museum für Naturkunde Berlin</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/b90cec9b-9ad4-4632-a43b-e2181b1ef407/heatmap.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Guess What? Protomammal Butt - Make it stand out</image:title>
      <image:caption>Heat map of the tail fossil showing the cloaca, emphasized with an arrow added by RB. Credit: Museum für Naturkunde Berlin</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/a942b5dd-62d8-4a59-ae34-e8e86a7c4115/cloacaevolution.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Guess What? Protomammal Butt - Make it stand out</image:title>
      <image:caption>Vertical vents may be the ancestral condition, various animal lineages shifting to horizontal over time. The reasons why are unknown. Credit: Marchetti et al. 2026.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/some-fish-will-never-learn</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-07-16</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/7b60a920-83c4-4de5-9f8d-6a815780212c/blastoid.png</image:loc>
      <image:title>Blog: Tooth and Bone - Some Fish Will Never Learn - Make it stand out</image:title>
      <image:caption>A stacked image of the blastoid Pentremites, an extinct relative of crinoids and starfish. Credit: Diego Delso CC BY-SA 4.0</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/feaa5472-3cfe-4165-9655-c9a1540c6725/blastoid-damage.png</image:loc>
      <image:title>Blog: Tooth and Bone - Some Fish Will Never Learn - Make it stand out</image:title>
      <image:caption>Diagram of Pentremites spicatus showing several elongated bite marks on the outside. Credit: Drumheller et al. 2026.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/legs-evolved-before-amphibian-metamorphosis</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-07-08</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/fa0f83df-7288-446c-a065-90b23c5c90fc/unnamed%281%29.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Legs Evolved Before Amphibian Metamorphosis - Make it stand out</image:title>
      <image:caption>Babies of the earliest four-legged animals did not undergo metamorphosis and were more like mini-adults. Art: Berit Goding</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/9b16561c-670b-40ce-a356-304f0eb12e95/amphib.png</image:loc>
      <image:title>Blog: Tooth and Bone - Legs Evolved Before Amphibian Metamorphosis - Make it stand out</image:title>
      <image:caption>Another rendition of the baby embolomere with a speculative illustration of the adult. Credit: Gabriel Ugueto</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/the-pretty-kitty-in-the-cabinet</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-07-01</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/62f89a0b-55d5-4dc7-88a7-d1f63286c7c9/sabercat.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - The Pretty Kitty in the Cabinet - Make it stand out</image:title>
      <image:caption>Adelphailurus kansensis, a cougar-like sabercat. Art by Jesús Gamarra.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/c87fec8a-cf10-4f59-b840-4092ba7531d0/catskulls.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - The Pretty Kitty in the Cabinet - Make it stand out</image:title>
      <image:caption>Left side views of 3D models of Yoshi, Metailurus, and Adelphailurus skulls. From Chatar and Tseng, 2026.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/bite-of-the-thresher</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-06-24</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/ed912108-857c-4cff-8bfd-3bae6eb742f9/thresher.png</image:loc>
      <image:title>Blog: Tooth and Bone - Bite of the Thresher - Make it stand out</image:title>
      <image:caption>A modern Alopias, or thresher shark. Prehistoric forms likely lacked the elongated, stunning tail. Credit: Thomas Alexander CC BY-SA 4.0</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/49d8ef4e-dac3-474c-ba36-f53821e23bc2/thresher-tooth.png</image:loc>
      <image:title>Blog: Tooth and Bone - Bite of the Thresher - Make it stand out</image:title>
      <image:caption>Tooth of A. palatasi, showing serrations. Credit: NHM Collections CC BY-SA 4.0</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/got-you-snaggletooth</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-06-17</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/d1db2a7b-4d62-4ea2-a4d2-2cb1b462e7a0/snaggletooth1.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Got You, Snaggletooth - Make it stand out</image:title>
      <image:caption>The snaggletooth shark that dropped this tooth more than 10 million years ago.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/f2012b96-0801-4193-9998-6e10e4575362/snaggletoothmodern.png</image:loc>
      <image:title>Blog: Tooth and Bone - Got You, Snaggletooth - Make it stand out</image:title>
      <image:caption>The jaws of the modern H. elongata, from the front, detail of the back inside, and side view of teeth forming in the jaw. From Jambura et al. 2021.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/get-over-here-theres-a-giant-fossil-scorpion</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-06-15</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/87e0ab2b-5c0b-477e-9f42-fe8982bb730d/scorpion.png</image:loc>
      <image:title>Blog: Tooth and Bone - Get Over Here, There's a Giant Fossil Scorpion - Make it stand out</image:title>
      <image:caption>Praearcturus gigas is the largest scorpion yet known, from a time before our ancestors walked on land. Credit: Franz Anthony</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/64187af8-7760-446b-aea7-d435eff64a85/pincer.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Get Over Here, There's a Giant Fossil Scorpion - Make it stand out</image:title>
      <image:caption>Watch your cheeks, it’s the pincer of Praeacrcturus gigas. Credit: NHM London</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/the-amazing-disappearing-octopus</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-06-03</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/a9c21eb1-0523-4d10-87ac-9dbe72b2542d/notoctopus.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - The Amazing Disappearing Octopus - Make it stand out</image:title>
      <image:caption>Whatever it is, the way you tell your story online can make all the difference.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/taken-by-the-throat</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-05-27</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/666bfa21-f4ef-4ac6-83f3-f1841679bb4f/bite.jpeg</image:loc>
      <image:title>Blog: Tooth and Bone - Taken By the Throat - Make it stand out</image:title>
      <image:caption>The attack probably occurred at the surface. Credit: Miles Mayhall</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/875c84aa-aa1f-41c2-aed4-1e670833a514/vert.png</image:loc>
      <image:title>Blog: Tooth and Bone - Taken By the Throat - Make it stand out</image:title>
      <image:caption>Three views of the Polycotylus vertebra bitten by a large fish. Credit: Drumheller et al. 2026</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/storms-are-scary-for-baby-sharks</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-05-21</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/2d910886-1eff-4bc5-be47-c389d65adb7d/IMG_2654.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Storms Are Scary For Baby Sharks - Make it stand out</image:title>
      <image:caption>A mako-like restoration of Otodus megalodon, the largest predatory shark of all time. Credit: Riley Black</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/44f92743-a311-4871-bf62-741a7a3b8ac0/teeth.png</image:loc>
      <image:title>Blog: Tooth and Bone - Storms Are Scary For Baby Sharks - Make it stand out</image:title>
      <image:caption>The teeth of O. megalodon from the Gatún Formation, including many babies. From Pimiento et al. 2010.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/how-to-make-a-great-shark</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-05-13</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/7fbd01c2-260c-4245-9928-f9d821cc5956/4d02382f-0aee-47f5-a3d8-f3059e4bd343.png</image:loc>
      <image:title>Blog: Tooth and Bone - How to Make a Great Shark - Make it stand out</image:title>
      <image:caption>Giant predatory sharks related to today’s great whites and makos evolved during the Cretaceous. Credit: Columbus State University</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/84b401c9-e35e-4df2-be21-351b6c6f672b/a69204dd-a417-4b7a-92a4-ccccbe0de5b1.png</image:loc>
      <image:title>Blog: Tooth and Bone - How to Make a Great Shark - Make it stand out</image:title>
      <image:caption>The Darwin Formation sharks, denoted as NTM P 922-32, were surprisingly large for their time. From Bazzi et al. 2025.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/lucys-peril</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-05-11</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/56fbb62c-31c9-4324-ac0a-61254f57693c/Lucivenator+Paleoart%281%29.png</image:loc>
      <image:title>Blog: Tooth and Bone - Teeth in the Shallows - "Lucy's Peril" - Make it stand out</image:title>
      <image:caption>How many australopithecines were eaten by crocodiles? The world may never know. Credit: Tyler Stone/University of Iowa</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/4a692c9e-c096-447f-9934-7dfd309475e7/skulls.png</image:loc>
      <image:title>Blog: Tooth and Bone - Teeth in the Shallows - "Lucy's Peril" - Make it stand out</image:title>
      <image:caption>The skull of C. lucivenator. Credit: Christopher Brochu/University of Iowa</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/the-most-precious-protomammal</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-04-29</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/927a720d-59c6-4593-93f0-b8eca9259ec8/lystrosaurusbb.PNG</image:loc>
      <image:title>Blog: Tooth and Bone - The Most Precious Protomammal - Make it stand out</image:title>
      <image:caption>The embryo is near-unprecedented find. Credit: Sophie Vrard</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/eda152ae-bcf5-4999-b090-84835f5462f0/lystrofossil.png</image:loc>
      <image:title>Blog: Tooth and Bone - The Most Precious Protomammal - Make it stand out</image:title>
      <image:caption>A reconstruction of the baby found curled up, and the splayed-out skeleton of another embryo BP/1/9332. Credit: Benoit et al. 2026</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/call-her-venus-croc</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-04-22</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/d79c7f31-e18f-460f-b212-33c68e381703/croc.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Just Call Her Venus of the Morning, Croc - Make it stand out</image:title>
      <image:caption>Eosphorosuchus very rudely interrupted by Hesperosuchus in the middle of a Coelophysis snack. Credit: Julio Lacerda</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/4aa4eb3b-8759-46df-8c3d-1fd2b5ef6fd0/crocskull.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Just Call Her Venus of the Morning, Croc - Make it stand out</image:title>
      <image:caption>The skull of Eosphorosuchus seen from top (left) and bottom (right), with line drawings of the fossil. Credit: Miranda Margulis-Ohnuma</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/the-lizard-in-the-river</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-04-15</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/71bfcfd3-6495-4708-a1ca-85f8445d2ae5/The+Hell+Creek+Mosasaur+reconstruction+by+Christopher+DiPiazza.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - The Lizard in the River - Make it stand out</image:title>
      <image:caption>Mosasaurs venturing into freshwater would have found abundant food. Credit: Christopher DiPiazza</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/38b03acf-2da5-4843-98c4-1c2a9bfbcd15/Mosasaur+reconstruction+Melanie.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - The Lizard in the River - Make it stand out</image:title>
      <image:caption>A mosasaur swims through a Cretaceous river in ancient North Dakota. Credit: Melanie During</image:caption>
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  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/the-mother-of-spiders</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-04-08</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/f7b58b8f-ce2a-4903-87dc-3d783ef21728/image%282%29.png</image:loc>
      <image:title>Blog: Tooth and Bone - The Mother of Spiders, Horseshoe Crabs, and Things That Go Snap - Make it stand out</image:title>
      <image:caption>The claws of Megachelicerax give away its relationship to spiders, horseshoe crabs, and other chelicerates. Credit: Masato Hattori</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/da87d49b-aced-459c-a93e-06ba255d4c9d/Fossil.jpeg</image:loc>
      <image:title>Blog: Tooth and Bone - The Mother of Spiders, Horseshoe Crabs, and Things That Go Snap - Make it stand out</image:title>
      <image:caption>Views of fossil Megachelicerax, the bottom image showing the telltale claw. Credit: Rudy Lerosey-Aubril</image:caption>
    </image:image>
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  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/the-scaly-sauropod-shimmer</loc>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
    <lastmod>2026-03-27</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/98841ed3-3375-4a4c-9099-4cfe82e8fb81/Press+release+official.png</image:loc>
      <image:title>Blog: Tooth and Bone - The Scaly Sauropod Shimmer - Make it stand out</image:title>
      <image:caption>A small patch of sauropod skin suggests long-necked dinosaurs were surprisingly colorful. Art by Tess Gallagher.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/f8ff3336-9ce4-4d2a-b9e9-b1c54a0379f6/rsos.251232.f006.png</image:loc>
      <image:title>Blog: Tooth and Bone - The Scaly Sauropod Shimmer - Make it stand out</image:title>
      <image:caption>Artistic interpretation of Diplodocus skin, showing the placement of melanosomes within the reconstructed skin layers. From Gallagher et al. 2025.</image:caption>
    </image:image>
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  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/the-gorgon-bird</loc>
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    <lastmod>2026-03-18</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/69a1f5bd-8ddd-4f5f-9160-f15d842a0e85/gorgonavis.jpeg</image:loc>
      <image:title>Blog: Tooth and Bone - The Gorgon Bird - Make it stand out</image:title>
      <image:caption>The toothed bird Gorgonavis socializing in Early Cretaceous Spain. Art by Roc Olivé.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/baby-longnecks-were-jurassic-popcorn</loc>
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    <lastmod>2026-03-11</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/1773252009150-BMCA8OH4Y1RNU3WLEANA/brachiosaurus.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Baby Longnecks Were Jurassic Popcorn - Make it stand out</image:title>
      <image:caption>Brachiosaurus was among the largest of the Morrison Formation sauropods, including at Dry Mesa.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/258f76aa-bcd6-4a0b-9f7e-68624c4b8172/morrisonfigure.png</image:loc>
      <image:title>Blog: Tooth and Bone - Baby Longnecks Were Jurassic Popcorn - Make it stand out</image:title>
      <image:caption>A simplified diagram of a Morrison Formation food web, arrows indicating who was eating whom 150 million years ago. From Morrison et al. 2026.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/591f27ea-e1a0-4929-9de4-7fa9658c47af/cassius.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Baby Longnecks Were Jurassic Popcorn - Make it stand out</image:title>
      <image:caption>Study author Cassius Morrison and the Morrison Formation in the background. Credit: Cassius Morrison</image:caption>
    </image:image>
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    <loc>http://rileyblack.net/blog-tooth-and-bone/tyrannosaurus-edmontosaurus-bite</loc>
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    <lastmod>2026-03-04</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/4ce31adc-1d51-4ef2-99d0-971be5823777/tyranno.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Tyrant's Tooth Reveals Cretaceous Face Bite - Make it stand out</image:title>
      <image:caption>“The Bite” by artist Jen Hall</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/2469b6f4-ac64-44f9-bdff-ecbcaf777406/tooth.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Tyrant's Tooth Reveals Cretaceous Face Bite - Make it stand out</image:title>
      <image:caption>Views of the MOR 1627 CT scan, showing the embedded teeth in blue. From Wyenberg-Henzler and Scannella, 2026.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>http://rileyblack.net/blog-tooth-and-bone/tyrannoroter-the-plant-munching-lump</loc>
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    <priority>0.5</priority>
    <lastmod>2026-03-04</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/12321b4d-aca2-497b-810d-e0519494247d/tyrannoroter.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Tyrannoroter, the Plant-Munching Lump - Make it stand out</image:title>
      <image:caption>Absolutely adorable, Tyrannoroter was one of the first herbivores on land. Art by Hannah Fredd.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/457af259-93c7-4bff-ba85-453c8599709b/tyrannoroter.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Tyrannoroter, the Plant-Munching Lump - Make it stand out</image:title>
      <image:caption>Paleontologist Arjan Mann holding a 3D print of the Tyrannoroter skull. Credit: Field Museum</image:caption>
    </image:image>
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    <loc>http://rileyblack.net/blog-tooth-and-bone/chainsaw-man-saw-shark</loc>
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    <lastmod>2025-11-10</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/1e558b8c-9a37-4a12-964f-1e8c43420f11/sawshark-and-ray.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - All Devils Are Born With a Name - Make it stand out</image:title>
      <image:caption>The prehistoric sawshark Pochitaserra patriciacanalae (above) and the ray Dasyatis manuelcamposi (below). Credit: Carlos Espinosa Bustos</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/d8146e0a-894c-4ae4-be96-6720b3d041f6/pochitaserra.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - All Devils Are Born With a Name</image:title>
      <image:caption>A sawshark-transformed Pochita. Credit: Cotty Charuri</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/e2c782ec-52e9-48e5-b0e1-790ac87d1dd3/pochitaserra-teeth.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - All Devils Are Born With a Name - Make it stand out</image:title>
      <image:caption>Several teeth of Pochitaserra found in Chile. Courtesy Jaime Villafaña.</image:caption>
    </image:image>
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    <loc>http://rileyblack.net/blog-tooth-and-bone/spicomellus-armored-dinosaur</loc>
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    <priority>0.5</priority>
    <lastmod>2025-09-22</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/398eee74-5284-441c-a747-71b5b229151d/spicomellus-life.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Dinosaurs Were Weirder Than We Ever Imagined - Make it stand out</image:title>
      <image:caption>Not only is Spicomellus the oldest known ankylosaur, but it’s one of the spikiest. Credit: Matthew Dempsey</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/02b244f3-8797-4766-8caf-b4d594f9631f/spicomellus-armor.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Dinosaurs Were Weirder Than We Ever Imagined - Make it stand out</image:title>
      <image:caption>Fossils of Spicomellus, including the spiky cervical ring. Credit: Maidment et al., Nature (2025)</image:caption>
    </image:image>
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    <loc>http://rileyblack.net/blog-tooth-and-bone/kostensuchus-crocodile-carnivore</loc>
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    <priority>0.5</priority>
    <lastmod>2025-09-17</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/1a8f04ef-c13a-45a8-b842-b9e5f000fc09/kostensuchusrestore.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Flesh-Ripping Crocs Outlived Carnivorous Dinosaurs - Make it stand out</image:title>
      <image:caption>Kostensuchus was a large carnivorous croc, estimated at about 12 feet in length. Art by Gabriel Diaz Yanten.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/ea34fbd4-9ac0-416b-8128-cac5ebde53f8/kostensuchusskele.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Flesh-Ripping Crocs Outlived Carnivorous Dinosaurs - Make it stand out</image:title>
      <image:caption>The fossil of Kostensuchus is one of the most complete of its kind ever found. José Brusco, CC-BY 4.0.</image:caption>
    </image:image>
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    <loc>http://rileyblack.net/blog-tooth-and-bone/2024/8/6/the-curious-case-of-a-coastal-croc</loc>
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    <lastmod>2024-08-06</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/6ca67f1e-9e51-47ac-8f23-3f2f8d162eca/coastal-croc.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - The Curious Case of a Coastal Croc - Make it stand out</image:title>
      <image:caption>Benggwigwishingasuchus eremicarminis takes a stroll along a Triassic coastline. Credit: Jorge Gonzalez.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/67495ceb-1db1-4609-ba0a-3874dbe39a6a/crocmap.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - The Curious Case of a Coastal Croc - Make it stand out</image:title>
      <image:caption>Benggwigwishingasuchus is the first croc of its kind found on Pangaea’s west coast during the middle of the Triassic. The yellow dots represent similar, previous finds made along the supercontinent’s eastern coastline. Credit: NHMLA</image:caption>
    </image:image>
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    <lastmod>2024-07-03</lastmod>
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      <image:title>Blog: Tooth and Bone - Just when you thought it was safe to go back in the swamp... - Make it stand out</image:title>
      <image:caption>The most complete fossil of Gaiasia jennyae yet found, an early tetrapod found in the 280 million-year-old rocks of Namibia. Credit: C. Mariscano</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/53f61bcee4b089d4d8ef0798/6add825a-3569-4f64-a7eb-69309dcbca8d/Life+reconstruction+of+Gaiasia+jennyae.jpg</image:loc>
      <image:title>Blog: Tooth and Bone - Just when you thought it was safe to go back in the swamp... - Gaiasia jennyae</image:title>
      <image:caption>Estimated to grow to lengths exceeding eight feet, Gaiasia is among the largest early tetrapods yet found. Credit: Gabriel Lio</image:caption>
    </image:image>
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      <image:title>Store - The Last Days of the Dinosaurs - Paperback, Signed by Riley</image:title>
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