{"id":13002,"date":"2024-10-24T15:45:38","date_gmt":"2024-10-24T19:45:38","guid":{"rendered":"https:\/\/dailygalaxy.com\/?p=13002"},"modified":"2024-10-24T16:04:14","modified_gmt":"2024-10-24T20:04:14","slug":"swamp-dwelling-mammal-discovered-colorado","status":"publish","type":"post","link":"https:\/\/dailygalaxy.com\/2024\/10\/swamp-dwelling-mammal-discovered-colorado\/","title":{"rendered":"Ancient Swamp-Dwelling Mammal from Age of Dinosaurs Discovered in Colorado"},"content":{"rendered":"

Paleontologists have uncovered the remains of a new swamp-dwelling mammal species<\/strong> that lived approximately 70-75 million years ago<\/strong> during the Late Cretaceous period<\/strong>, a time when dinosaurs still roamed the Earth. The fossils, including a jawbone and teeth, were discovered near Rangely, Colorado<\/strong>, in a region that was once a swampy landscape<\/strong> along the edge of an ancient inland sea. The species has been named Heleocola piceanus<\/strong>, meaning \"swamp dweller\" in Latin, reflecting its habitat in this watery environment.<\/p>\n

A Glimpse into the Late Cretaceous<\/h2>\n

The discovery of Heleocola piceanus<\/strong> offers a rare glimpse into a poorly documented time in North America\u2019s ancient history. During this period, much of what is now Colorado was submerged by the Western Interior Seaway<\/strong>, an expansive body of water that split North America into two landmasses. The region where the new species was found likely resembled modern-day Louisiana<\/strong>, with deltas, marshes, and swamps providing a rich habitat for a variety of creatures, including turtles, dinosaurs<\/a>, and large crocodiles.<\/p>\n

According to Jaelyn Eberle<\/strong>, lead author of the study and a professor at the University of Colorado Boulder<\/strong>, this new species \u201cfills a gap in our understanding of mammals living in swampy environments near the Western Interior Seaway.\u201d The fossil assemblage<\/strong>, which includes a mix of terrestrial and marine species, suggests that Heleocola<\/strong> lived in close proximity to these water-rich habitats. \u201cHeleocola likely lived near river channels, swamps, and deltas,\u201d Eberle said, \u201cand its discovery gives us a snapshot of an ancient ecosystem teeming with life.\u201d<\/p>\n

\"3d<\/a><\/p>\n

Among the Largest Mammals of Its Time<\/h2>\n

While most mammals from the Late Cretaceous<\/strong> were no larger than modern-day mice or rats, Heleocola piceanus<\/strong> stood out due to its relatively large size. Paleontologists estimate that the mammal weighed around 2 pounds<\/strong>, about the size of today\u2019s muskrat<\/strong>. This makes it one of the largest known mammals from this period. As John Foster<\/strong>, a co-author of the study and scientist at the Utah Field House of Natural History<\/strong>, remarked when he first saw the jawbone fossil, \u201cHoly cow, that\u2019s huge.\u201d<\/p>\n

The teeth of Heleocola<\/strong> reveal important clues about its diet. Eberle and her team suggest that it was likely an omnivore<\/strong>, feeding primarily on plants but also possibly consuming insects and small vertebrates. \u201cIts dental structure indicates that it had a plant-dominated diet, though it may have supplemented with small creatures from its swampy environment,\u201d Eberle explained.<\/p>\n

New Insights into Mammal Evolution Before the Extinction of the Dinosaurs<\/h2>\n

The discovery of Heleocola piceanus<\/strong> sheds new light on the evolution of mammals before the mass extinction event that wiped out the non-avian dinosaurs around 66 million years ago<\/strong>. Traditionally, mammals during the age of dinosaurs were thought to be small, insignificant creatures that lived in the shadows of much larger reptiles. However, the Heleocola<\/strong> fossil challenges this assumption by showing that some mammals were larger and more ecologically diverse than previously believed.<\/p>\n

\u201cMammals didn\u2019t really get large until after the asteroid wiped out the dinosaurs,\u201d Eberle said, \u201cbut Heleocola<\/strong> shows that there were already some bigger mammals living alongside dinosaurs before that event.\u201d The discovery highlights the potential for more large-bodied mammals to have existed during the Late Cretaceous, a time period that has yet to be fully explored in terms of mammalian diversity.<\/p>\n

The study detailing the discovery of Heleocola piceanus<\/strong> was published in the journal PLOS ONE<\/strong><\/a>, where the team hopes their findings will encourage further exploration of ancient ecosystems in North America.<\/p>\n","protected":false},"excerpt":{"rendered":"

Paleontologists have discovered the fossils of Heleocola piceanus, a 75-million-year-old swamp-dwelling mammal, in Colorado. This Late Cretaceous species, larger than most mammals of its time, offers new insights into mammal…<\/p>\n","protected":false},"author":4,"featured_media":13005,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":""},"categories":[1,137],"tags":[321],"class_list":["post-13002","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-science","tag-heleocola-piceanus"],"_links":{"self":[{"href":"https:\/\/dailygalaxy.com\/wp-json\/wp\/v2\/posts\/13002"}],"collection":[{"href":"https:\/\/dailygalaxy.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dailygalaxy.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dailygalaxy.com\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/dailygalaxy.com\/wp-json\/wp\/v2\/comments?post=13002"}],"version-history":[{"count":1,"href":"https:\/\/dailygalaxy.com\/wp-json\/wp\/v2\/posts\/13002\/revisions"}],"predecessor-version":[{"id":13007,"href":"https:\/\/dailygalaxy.com\/wp-json\/wp\/v2\/posts\/13002\/revisions\/13007"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dailygalaxy.com\/wp-json\/wp\/v2\/media\/13005"}],"wp:attachment":[{"href":"https:\/\/dailygalaxy.com\/wp-json\/wp\/v2\/media?parent=13002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dailygalaxy.com\/wp-json\/wp\/v2\/categories?post=13002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dailygalaxy.com\/wp-json\/wp\/v2\/tags?post=13002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}