New Species / en 茄子直播 researchers and science illustrator bring fossilized creatures to life /news/u-t-researchers-and-science-illustrator-bring-fossilized-creatures-life <span class="field field--name-title field--type-string field--label-hidden">茄子直播 researchers and science illustrator bring fossilized creatures to life </span> <div class="field field--name-field-featured-picture field--type-image field--label-hidden field__item"> <img loading="eager" srcset="/sites/default/files/styles/news_banner_370/public/2017-02-27-fossil-ROM%20%281%29.jpg?h=afdc3185&amp;itok=HWdQgYXC 370w, /sites/default/files/styles/news_banner_740/public/2017-02-27-fossil-ROM%20%281%29.jpg?h=afdc3185&amp;itok=uvHvx836 740w, /sites/default/files/styles/news_banner_1110/public/2017-02-27-fossil-ROM%20%281%29.jpg?h=afdc3185&amp;itok=WuAm3hOD 1110w" sizes="(min-width:1200px) 1110px, (max-width: 1199px) 80vw, (max-width: 767px) 90vw, (max-width: 575px) 95vw" width="740" height="494" src="/sites/default/files/styles/news_banner_370/public/2017-02-27-fossil-ROM%20%281%29.jpg?h=afdc3185&amp;itok=HWdQgYXC" alt="picture of worm-like creature"> </div> <span class="field field--name-uid field--type-entity-reference field--label-hidden"><span>geoff.vendeville</span></span> <span class="field field--name-created field--type-created field--label-hidden"><time datetime="2017-02-27T11:06:28-05:00" title="Monday, February 27, 2017 - 11:06" class="datetime">Mon, 02/27/2017 - 11:06</time> </span> <div class="clearfix text-formatted field field--name-field-cutline-long field--type-text-long field--label-above"> <div class="field__label">Cutline</div> <div class="field__item">A scientific illustration of Ovatiovermis cribratus shows how this legged worm-like creature would have looked like with its front-feeding limbs extended (illustration by Danielle Dufault 漏Royal Ontario Museum)</div> </div> <div class="field field--name-field-author-reporters field--type-entity-reference field--label-hidden field__items"> <div class="field__item"><a href="/news/authors-reporters/geoffrey-vendeville" hreflang="en">Geoffrey Vendeville</a></div> </div> <div class="field field--name-field-author-legacy field--type-string field--label-above"> <div class="field__label">Author legacy</div> <div class="field__item">Geoffrey Vendeville</div> </div> <div class="field field--name-field-topic field--type-entity-reference field--label-above"> <div class="field__label">Topic</div> <div class="field__item"><a href="/news/topics/our-community" hreflang="en">Our Community</a></div> </div> <div class="field field--name-field-story-tags field--type-entity-reference field--label-hidden field__items"> <div class="field__item"><a href="/news/tags/paleontology" hreflang="en">Paleontology</a></div> <div class="field__item"><a href="/news/tags/royal-ontario-museum" hreflang="en">Royal Ontario Museum</a></div> <div class="field__item"><a href="/news/tags/fossils" hreflang="en">Fossils</a></div> <div class="field__item"><a href="/news/tags/new-species" hreflang="en">New Species</a></div> </div> <div class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"><p>茄子直播 researchers 鈥 some&nbsp;of whom are students 鈥 have uncovered fossils of creatures that roamed the earth or swam in its waters millions of years ago.</p> <p>But it鈥檚 only with the help of science illustrators like Danielle Dufault at the Royal Ontario Museum that they are able to bring these long-extinct species back to life.</p> <p>After many hours of research and consultation with experts, she depicts ancient creatures using traditional and digital media.</p> <p>鈥淏eing able to work and collaborate with scientists gives you&nbsp;the opportunity to learn every day,鈥 she told&nbsp;<em>茄子直播 News</em>.&nbsp;鈥淭his is honestly my dream job.鈥</p> <p>On Tuesday, Dufault will be&nbsp;speaking at the annual ROM Research Colloquium and Vaughan Lecture, about her work with researchers.</p> <h3><a href="http://www.rom.on.ca/en/whats-on/rom-research-colloquium">Read more about the event&nbsp;</a></h3> <p><iframe allowfullscreen frameborder="0" height="500" src="https://www.youtube.com/embed/0GQyE46-LaA" width="750"></iframe></p> <p>茄子直播 undergrad<strong>&nbsp;Joseph Moysiuk</strong>&nbsp;recently worked with Dufault&nbsp;to animate a marine creature known as a hyolith, which evolved more than 530 million years ago. The 20-year-old led a team of scientists to&nbsp;classify the mysterious cone-shaped&nbsp;creatures, showing that they were more closely related to brachiopods.&nbsp;<em>The New York Times&nbsp;</em>recently described&nbsp;the creature&nbsp;as a&nbsp;鈥渢entacled ice cream cone with a lid.鈥</p> <p>Although there is a rich fossil record of the hyolith, important diagnostic aspects of their soft-anatomy remained a mystery until now. And so drawing a brachiopod that existed even before the first dinosaurs was no simple task.</p> <p>Dufault and Moysiuk started with what evidence they had, including fossils from the Burgess Shale in the Canadian Rocky Mountains and collections in the ROM.</p> <p>鈥淲ith fossils from the Burgess Shale, which are effectively compressed into flattened carbon films, the challenge is to figure out what the living animal would have looked like in three-dimensions,鈥 Moysiuk said.</p> <p><img alt class="media-image attr__typeof__foaf:Image img__fid__3574 img__view_mode__media_original attr__format__media_original" src="/sites/default/files/2017-01-11-Joseph%20Moysiuk_0.jpg" style="width: 750px; height: 563px;" typeof="foaf:Image"><br> <em>茄子直播 undergrad Joseph Moysiuk showing matching halves of a fossil slab in Kootenay National Park (photo courtesy of Joseph Moysiuk)</em></p> <h3><a href="/news/u-t-undergrad-leads-team-paleontologists-classifying-mysterious-ancient-cone-shaped-sea">Read more about the cone-shaped hyolith</a></h3> <p>Another difficulty is that fossilized remains are rarely complete, so researchers and illustrators must often fill in the blanks.</p> <p>Over the years, Dufault has sat&nbsp;down and worked with many students and 茄子直播 researchers like Moysiuk cross-appointed to the ROM to create images for these&nbsp;ancient creatures. She asks&nbsp;researchers to go over the details of the&nbsp;creature's anatomy, asking questions like how many limbs did it have, how were they attached to the body, and how did the creature&nbsp;move.&nbsp;</p> <p>Often, colour is a point of contention. Usually the scientists and illustrator will choose a colour based on the animal鈥檚 鈥渆cological niche,鈥 including where it falls in the food chain.</p> <p>鈥淐olour always serves some kind of function in nature,鈥 Dufault explained.</p> <p>To better understand a fossilized animal's environment, she will sometimes accompany researchers to a dig as she did in South Dakota for the excavation of a triceratops. She shares some of those adventures via <a href="http://twitter.com/MesozoicMuse">Twitter</a>.</p> <p><img alt class="media-image attr__typeof__foaf:Image img__fid__3572 img__view_mode__media_original attr__format__media_original" height="472" src="/sites/default/files/Mesozoic%20Muse.JPG" typeof="foaf:Image" width="588" loading="lazy"></p> <h3><a href="https://www.nytimes.com/2017/01/11/science/hyolith-fossil.html">Read about Moysiuk in <em>The New York Times</em>&nbsp;</a></h3> <p>Moysiuk said the process can&nbsp;help researchers refine their hypotheses.&nbsp;</p> <p>鈥淚f something doesn鈥檛 make sense in the reconstruction, you have a chance to go back and look at the fossils to see why,鈥 he said.</p> <p>鈥淔or our project, it was particularly difficult to determine how the helens (curving spines) would have been positioned relative to the body in the living hyolith.鈥</p> <p>茄子直播 Associate Professor <strong>Jean-Bernard Caron</strong> and researcher&nbsp;<strong>C茅dric Aria</strong>, who recently completed a PhD in 茄子直播's department of ecology and evolutionary biology, have worked with Dufault to illustrate a new species, <em>Ovatiovermis cribratus</em>, a 500-million-year-old worm-like creature said to be no longer than a thumb.</p> <p>Aria said he had also worked with Dufault to animate a fossil called <a href="https://www.rom.on.ca/en/about-us/newsroom/press-releases/new-lobster-like-predator-found-in-508-million-year-old-fossil-rich"><em>Yawunik</em></a>, a lobster-like, Cambrian-age predator which is an ancestor of butterflies and spiders.</p> <p>The pictures, which end up in studies, textbooks and museums, help communicate research findings to a wide audience, Aria said. In fact, the depictions are partly what drew him to the field.</p> <p>鈥淚f I am a paleontologist today, it is because some reconstructions of prehistoric animals have managed to capture both the novelty and the reality of extinct life,鈥 he said.</p> <h3><a href="/news/500-million-year-old-species-%E2%80%93-detailed-u-t-scientists-%E2%80%93-offers-insight-ancient-legged-worms">Read more about the worm-like creature</a></h3> </div> <div class="field field--name-field-news-home-page-banner field--type-boolean field--label-above"> <div class="field__label">News home page banner</div> <div class="field__item">Off</div> </div> Mon, 27 Feb 2017 16:06:28 +0000 geoff.vendeville 105250 at 500-million-year-old species 鈥 detailed by 茄子直播 scientists 鈥 offers insight into ancient legged worms /news/500-million-year-old-species-detailed-u-t-scientists-offers-insight-ancient-legged-worms <span class="field field--name-title field--type-string field--label-hidden">500-million-year-old species 鈥 detailed by 茄子直播 scientists 鈥 offers insight into ancient legged worms</span> <div class="field field--name-field-featured-picture field--type-image field--label-hidden field__item"> <img loading="eager" srcset="/sites/default/files/styles/news_banner_370/public/fossil-ROM.jpg?h=afdc3185&amp;itok=J8yHUAWs 370w, /sites/default/files/styles/news_banner_740/public/fossil-ROM.jpg?h=afdc3185&amp;itok=fiZpe44Y 740w, /sites/default/files/styles/news_banner_1110/public/fossil-ROM.jpg?h=afdc3185&amp;itok=JF_Hcc_N 1110w" sizes="(min-width:1200px) 1110px, (max-width: 1199px) 80vw, (max-width: 767px) 90vw, (max-width: 575px) 95vw" width="740" height="494" src="/sites/default/files/styles/news_banner_370/public/fossil-ROM.jpg?h=afdc3185&amp;itok=J8yHUAWs" alt="illustration of ovatiovermis"> </div> <span class="field field--name-uid field--type-entity-reference field--label-hidden"><span>ullahnor</span></span> <span class="field field--name-created field--type-created field--label-hidden"><time datetime="2017-01-31T10:24:35-05:00" title="Tuesday, January 31, 2017 - 10:24" class="datetime">Tue, 01/31/2017 - 10:24</time> </span> <div class="clearfix text-formatted field field--name-field-cutline-long field--type-text-long field--label-above"> <div class="field__label">Cutline</div> <div class="field__item">A scientific illustration of Ovatiovermis cribratus shows how this soft-bodied marine animal would have looked like with its front-feeding limbs extended (illustration by Danielle Dufault 漏Royal Ontario Museum)</div> </div> <div class="field field--name-field-author-reporters field--type-entity-reference field--label-hidden field__items"> <div class="field__item"><a href="/news/authors-reporters/royal-ontario-museum" hreflang="en">Royal Ontario Museum</a></div> </div> <div class="field field--name-field-author-legacy field--type-string field--label-above"> <div class="field__label">Author legacy</div> <div class="field__item"> Royal Ontario Museum, Faculty of Arts &amp; Science</div> </div> <div class="field field--name-field-topic field--type-entity-reference field--label-above"> <div class="field__label">Topic</div> <div class="field__item"><a href="/news/topics/breaking-research" hreflang="en">Breaking Research</a></div> </div> <div class="field field--name-field-story-tags field--type-entity-reference field--label-hidden field__items"> <div class="field__item"><a href="/news/tags/fossils" hreflang="en">Fossils</a></div> <div class="field__item"><a href="/news/tags/rom" hreflang="en">ROM</a></div> <div class="field__item"><a href="/news/tags/ecology-and-evolutionary-biology" hreflang="en">Ecology and Evolutionary Biology</a></div> <div class="field__item"><a href="/news/tags/earth-sciences" hreflang="en">Earth Sciences</a></div> <div class="field__item"><a href="/news/tags/faculty-arts-science" hreflang="en">Faculty of Arts &amp; Science</a></div> <div class="field__item"><a href="/news/tags/new-species" hreflang="en">New Species</a></div> </div> <div class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"><p>A new species of lobopodian 鈥&nbsp;a worm-like animal that could stand nearly upright 鈥 from the Cambrian period (541 to 485 million years ago), has been detailed for the first time from fossils found in the Burgess Shale in the Canadian Rocky Mountains.</p> <p>Details of the new species, called <em>Ovatiovermis cribratus</em>, have&nbsp;been&nbsp;published in the open access journal <a href="http://bmcevolbiol.biomedcentral.com/articles/10.1186/s12862-016-0858-y"><em>BMC Evolutionary Biology</em></a>.</p> <p><iframe allowfullscreen frameborder="0" height="500" src="https://www.youtube.com/embed/wAlDXupmbOs" width="750"></iframe></p> <p>The new species is only the third lobopodian that has been formally described from the Burgess Shale. It is one of the rarest species found there, and now it's in the collections of the Royal Ontario Museum in Toronto.</p> <p><strong>Jean-Bernard Caron</strong>, an associate professor at 茄子直播 and senior curator of invertebrate paleontology at the Royal Ontario Museum (ROM) is the lead author of the study.</p> <p>鈥淎lthough <em>Ovatiovermis</em> is no longer than my thumb with all limbs stretched out and is only known from two specimens, this new species provides fantastic new insights into the ecology and relationship of lobopodians, a group of mainly Cambrian marine invertebrates which are key to our understanding of modern tardigrades, onychophorans and the largest group of animals on Earth 鈥 the arthropods,鈥 said Caron, a researcher in the departments of <a href="http://www.eeb.utoronto.ca/">ecology and evolutionary biology</a>&nbsp;and <a href="http://www.es.utoronto.ca/">earth sciences</a>&nbsp;at 茄子直播's Faculty of Arts &amp; Science.</p> <p>Caron and<strong> C茅dric Aria</strong>, a PhD candidate in&nbsp;U&nbsp;of T's department of ecology and evolutionary biology, believe that strong recurved claws on the back limbs may have allowed <em>Ovatiovermis</em> and other related species to anchor themselves on hard surfaces and stand more or less upright. Two long pairs of flexible and spinulose (hairy or spiky) limbs at the front of the body would then have been used to filter or collect food from water and bring it closer to the animals鈥 toothed, eversible mouth.</p> <p>鈥淭he various adaptations of this new animal to anchored particle feeding are reflected in its name,鈥 said Aria, a co-author of the study. 鈥淭he species, cribratus, is the Latin for 鈥渢o sieve,鈥 whereas the genus name, <em>Ovatiovermis</em>, refers to that posture it must have ordinarily taken along the bottom of the sea: a worm-like creature that stood in perpetual ovation.鈥</p> <p><img alt class="media-image attr__typeof__foaf:Image img__fid__3312 img__view_mode__media_original attr__format__media_original" height="500" src="/sites/default/files/Ovatiovermis2.jpg" typeof="foaf:Image" width="750" loading="lazy"><br> <em>This specimen, the holotype for 鈥淥vatiovermis cribratus,鈥 was collected in 1994 by the Royal Ontario Museum at the Walcott quarry, located in Yoho National Park, British Columbia (photo by&nbsp;Jean-Bernard Caron&nbsp;漏Royal Ontario Museum)</em></p> <p>Even though lobopodians have long been known and studied, and occupy an intriguing position in the tree of life of invertebrate animals, their ecology had remained poorly understood. The authors of the study also think that their findings provide new views on the evolution of lobopodians and their relatives.</p> <p>鈥淟obopodians have mostly been seen so far as an eclectic group,鈥 Aria said. 鈥淲e think that suspension feeding was common among them and turned out to be important in the initial 鈥榖urst鈥 of that colossal group that gave rise to water bears, velvet worms and arthropods. Interestingly, today, skeleton shrimps (Caprellidae), which are arthropods and thus much more complex living relatives of the lobopodians, have adopted a very similar lifestyle, and you can see them waving in the drifting water possibly much like <em>Ovatiovermis</em> used to.鈥</p> <p>Caron said the study also adds to what's known about suspension feeding.</p> <p>鈥淭hese results contribute to cumulative evidence that suspension feeding was already a widespread mode of life during the Cambrian period,鈥 Caron said. 鈥淚ts emergence has been important for the elaboration of modern marine ecosystems&nbsp;and must have played a role in the rapid diversification of the first animals.鈥</p> <p><img alt class="media-image attr__typeof__foaf:Image img__fid__3313 img__view_mode__media_original attr__format__media_original" height="512" src="/sites/default/files/Walcott%20Quarry%20%281994-DCollins%20image%292.jpg" typeof="foaf:Image" width="750" loading="lazy"><br> <em>Excavation work in 1994 by a team from the ROM at the Walcott quarry revealed new fossiliferous layers below the Walcott quarry (photo by&nbsp;Desmond Collins&nbsp;漏Royal Ontario Museum)</em></p> <p>The researchers were surprised however to find that unlike many other lobopodians, <em>O. cribratus</em>, did not have any hard structures to protect its body.</p> <p>鈥淐ontrary to its relatives, this species does not have any spines or plates on its body for protection,鈥 Caron said. 鈥淚ts 鈥榥aked鈥 state begs the question of how it was able to guard against predators.鈥</p> <p>The absence of ornament in the new species demonstrates that organisms that lived in the Cambrian period did not exclusively develop hard defensive structures to protect themselves.</p> <p>The researchers speculate that <em>O. cribratus</em> may have lived in sponge colonies to avoid predators, or that by analogy with modern animals it used camouflage or was toxic or distasteful to predators. However, this is a question that is difficult to solve with fossils, and it may remain forever one of <em>Ovatiovermis</em>鈥 secrets.</p> <p>The Burgess Shale, located in Yoho and Kootenay National Parks, is part of the Canadian Rocky Mountain Parks World Heritage Site. The holotype specimen was discovered by the Royal Ontario Museum in the Walcott Quarry, the original Burgess Shale site, in Yoho National Park. It remained the only known specimen of this new species for nearly two decades until a park visitor serendipitously discovered a second specimen while on a recent Parks Canada sponsored guided hike to the Walcott Quarry.</p> <p>Parks Canada protects the Burgess Shale, and supports peer-reviewed scientific research that continues to enhance our understanding of these rich palaeontological deposits. This new discovery adds another element to the story of early animal evolution that Parks Canada guides share enthusiastically with hundreds of park visitors every year.</p> <p><img alt class="media-image attr__typeof__foaf:Image img__fid__3314 img__view_mode__media_original attr__format__media_original" height="500" src="/sites/default/files/Ovatiovermis3.jpg" typeof="foaf:Image" width="750" loading="lazy"><br> <em>Illustration of 鈥淥vatiovermis cribratus鈥 showing how the holotype specimen became trapped in the sediment, partially sideways, before becoming a fossil (illustration by&nbsp;Danielle Dufault&nbsp;漏Royal Ontario Museum)</em></p> </div> <div class="field field--name-field-news-home-page-banner field--type-boolean field--label-above"> <div class="field__label">News home page banner</div> <div class="field__item">Off</div> </div> Tue, 31 Jan 2017 15:24:35 +0000 ullahnor 104242 at