{"product_id":"merycoidodon-jaw-fossil-white-river-group-wyoming-29-grams","title":"Merycoidodon Jaw Fossil – White River Group, Wyoming – 29 Grams","description":"\u003cp data-start=\"91\" data-end=\"438\" class=\"PDq2pG_selectionAnchorContainer\"\u003eAn authentic \u003cstrong data-start=\"104\" data-end=\"142\"\u003eMerycoidodon (oreodont) jaw fossil\u003c\/strong\u003e from the renowned \u003cstrong data-start=\"161\" data-end=\"193\"\u003eWhite River Group of Wyoming\u003c\/strong\u003e, preserving well-defined cheek teeth from one of North America's most recognizable Oligocene mammals. This specimen also exhibits a distinctive \u003cstrong data-start=\"338\" data-end=\"366\"\u003eUV-reactive fluorescence\u003c\/strong\u003e, adding an impressive display feature under longwave ultraviolet light.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"440\" data-end=\"753\"\u003eMerycoidodon, commonly referred to as an oreodont, was a sheep-sized herbivorous mammal that roamed North America approximately \u003cstrong data-start=\"568\" data-end=\"595\"\u003e34–23 million years ago\u003c\/strong\u003e during the Oligocene Epoch. Despite their superficial resemblance to pigs or sheep, oreodonts represent an extinct lineage with no direct modern descendants.\u003c\/p\u003e\n\u003cp data-start=\"755\" data-end=\"1035\"\u003eThe preserved molars display exceptional occlusal detail, showing the complex enamel ridges used for processing tough vegetation. The surrounding jawbone is well preserved and provides excellent anatomical context, making this a highly educational and collectible fossil specimen.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"1037\" data-end=\"1054\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul data-start=\"1056\" data-end=\"1437\"\u003e\n\u003cli data-section-id=\"1dm8jms\" data-start=\"1056\" data-end=\"1105\"\u003e\n\u003cstrong data-start=\"1058\" data-end=\"1069\"\u003eFossil:\u003c\/strong\u003e Merycoidodon (Oreodont) Jaw Section\u003c\/li\u003e\n\u003cli data-section-id=\"8x2pil\" data-start=\"1106\" data-end=\"1139\"\u003e\n\u003cstrong data-start=\"1108\" data-end=\"1120\"\u003eSpecies:\u003c\/strong\u003e \u003cem data-start=\"1121\" data-end=\"1135\"\u003eMerycoidodon\u003c\/em\u003e sp.\u003c\/li\u003e\n\u003cli data-section-id=\"rs3jd\" data-start=\"1140\" data-end=\"1206\"\u003e\n\u003cstrong data-start=\"1142\" data-end=\"1150\"\u003eAge:\u003c\/strong\u003e Oligocene Epoch (approximately 34–23 million years old)\u003c\/li\u003e\n\u003cli data-section-id=\"xgv1uj\" data-start=\"1207\" data-end=\"1241\"\u003e\n\u003cstrong data-start=\"1209\" data-end=\"1223\"\u003eFormation:\u003c\/strong\u003e White River Group\u003c\/li\u003e\n\u003cli data-section-id=\"zfvxb0\" data-start=\"1242\" data-end=\"1270\"\u003e\n\u003cstrong data-start=\"1244\" data-end=\"1257\"\u003eLocality:\u003c\/strong\u003e Wyoming, USA\u003c\/li\u003e\n\u003cli data-section-id=\"1gu6soj\" data-start=\"1271\" data-end=\"1293\"\u003e\n\u003cstrong data-start=\"1273\" data-end=\"1284\"\u003eWeight:\u003c\/strong\u003e 29 grams\u003c\/li\u003e\n\u003cli data-section-id=\"44ltkw\" data-start=\"1294\" data-end=\"1334\"\u003e\n\u003cstrong data-start=\"1296\" data-end=\"1311\"\u003eDimensions:\u003c\/strong\u003e 1.0 × 1.0 × 0.5 inches\u003c\/li\u003e\n\u003cli data-section-id=\"11b94v\" data-start=\"1335\" data-end=\"1369\"\u003e\n\u003cstrong data-start=\"1337\" data-end=\"1357\"\u003eSpecial Feature:\u003c\/strong\u003e UV Reactive\u003c\/li\u003e\n\u003cli data-section-id=\"mcm3na\" data-start=\"1370\" data-end=\"1410\"\u003e\n\u003cstrong data-start=\"1372\" data-end=\"1386\"\u003eCondition:\u003c\/strong\u003e Natural fossil specimen\u003c\/li\u003e\n\u003cli data-section-id=\"1lcjj38\" data-start=\"1411\" data-end=\"1437\"\u003e\u003cstrong data-start=\"1413\" data-end=\"1437\"\u003eExact specimen shown\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"ypikjk\" data-start=\"1439\" data-end=\"1460\"\u003eAbout Merycoidodon\u003c\/h2\u003e\n\u003cp data-start=\"1462\" data-end=\"1766\"\u003e\u003cem data-start=\"1462\" data-end=\"1476\"\u003eMerycoidodon\u003c\/em\u003e was among the most abundant mammals inhabiting the ancient floodplains of the White River ecosystem. These browsing herbivores lived alongside early horses, rhinoceroses, camel relatives, saber-toothed predators, and other extinct mammals that defined North America's Oligocene landscapes.\u003c\/p\u003e\n\u003cp data-start=\"1768\" data-end=\"1954\"\u003eTheir broad, durable molars evolved to efficiently grind coarse vegetation, and fossil jaws such as this provide valuable insight into the diets and ecology of these prehistoric mammals.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1punl39\" data-start=\"1956\" data-end=\"1974\"\u003eCollector Notes\u003c\/h2\u003e\n\u003cp data-start=\"1976\" data-end=\"2247\"\u003eThis specimen combines excellent tooth preservation with a documented White River Group provenance and an unusual UV-reactive response. The detailed chewing surfaces remain sharply preserved, while the contrasting fossil bone creates an attractive museum-quality display.\u003c\/p\u003e\n\u003cp data-start=\"2249\" data-end=\"2351\"\u003ePerfect for fossil collectors, educators, and anyone interested in North American prehistoric mammals.\u003c\/p\u003e\n\u003cp data-start=\"2353\" data-end=\"2403\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp data-start=\"2405\" data-end=\"2447\"\u003eYou will receive the exact specimen shown.\u003c\/p\u003e\n\u003cp data-start=\"2449\" data-end=\"2584\"\u003eEvery order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49082238402810,"sku":null,"price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/20260627_104848.jpg?v=1782589446","url":"https:\/\/serenitysoulstones.com\/products\/merycoidodon-jaw-fossil-white-river-group-wyoming-29-grams","provider":"Serenity Soul Stones","version":"1.0","type":"link"}