{"product_id":"mesohippus-early-horse-fossil-jaw-section-white-river-group-wyoming-23-grams","title":"Mesohippus Early Horse Fossil Jaw Section – White River Group, Wyoming – 23 Grams","description":"\u003cp data-start=\"109\" data-end=\"524\" class=\"PDq2pG_selectionAnchorContainer\"\u003eA genuine fossil jaw section from \u003cstrong data-start=\"143\" data-end=\"157\"\u003eMesohippus\u003c\/strong\u003e, one of North America's earliest horses, preserved within the renowned \u003cstrong data-start=\"229\" data-end=\"250\"\u003eWhite River Group\u003c\/strong\u003e deposits of Wyoming. Dating to the \u003cstrong data-start=\"286\" data-end=\"345\"\u003eOligocene Epoch (approximately 33–28 million years ago)\u003c\/strong\u003e, this specimen preserves a beautifully detailed series of cheek teeth that illustrate the evolutionary transition from forest-dwelling browsing horses to later grassland species.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"526\" data-end=\"806\"\u003eThe molars display exceptionally crisp enamel ridges and natural wear surfaces, making this an excellent educational and collector specimen. Under \u003cstrong data-start=\"673\" data-end=\"692\"\u003e365 nm UV light\u003c\/strong\u003e, the fossil exhibits a striking fluorescence, adding an additional display feature rarely seen in fossil mammals.\u003c\/p\u003e\n\u003cp data-start=\"808\" data-end=\"915\"\u003eMounted in a protective display box with identification label, this specimen is ready for display or study.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"917\" data-end=\"934\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul data-start=\"936\" data-end=\"1278\"\u003e\n\u003cli data-section-id=\"vzkbiu\" data-start=\"936\" data-end=\"967\"\u003e\n\u003cstrong data-start=\"938\" data-end=\"950\"\u003eSpecies:\u003c\/strong\u003e \u003cem data-start=\"951\" data-end=\"963\"\u003eMesohippus\u003c\/em\u003e sp.\u003c\/li\u003e\n\u003cli data-section-id=\"1vnyoqg\" data-start=\"968\" data-end=\"998\"\u003e\n\u003cstrong data-start=\"970\" data-end=\"986\"\u003eCommon Name:\u003c\/strong\u003e Early Horse\u003c\/li\u003e\n\u003cli data-section-id=\"xgv1uj\" data-start=\"999\" data-end=\"1033\"\u003e\n\u003cstrong data-start=\"1001\" data-end=\"1015\"\u003eFormation:\u003c\/strong\u003e White River Group\u003c\/li\u003e\n\u003cli data-section-id=\"1nkkv2d\" data-start=\"1034\" data-end=\"1100\"\u003e\n\u003cstrong data-start=\"1036\" data-end=\"1044\"\u003eAge:\u003c\/strong\u003e Oligocene Epoch (approximately 33–28 million years old)\u003c\/li\u003e\n\u003cli data-section-id=\"zfvxb0\" data-start=\"1101\" data-end=\"1129\"\u003e\n\u003cstrong data-start=\"1103\" data-end=\"1116\"\u003eLocality:\u003c\/strong\u003e Wyoming, USA\u003c\/li\u003e\n\u003cli data-section-id=\"1ulhsqh\" data-start=\"1130\" data-end=\"1152\"\u003e\n\u003cstrong data-start=\"1132\" data-end=\"1143\"\u003eWeight:\u003c\/strong\u003e 23 grams\u003c\/li\u003e\n\u003cli data-section-id=\"103k8j7\" data-start=\"1153\" data-end=\"1196\"\u003e\n\u003cstrong data-start=\"1155\" data-end=\"1170\"\u003eDimensions:\u003c\/strong\u003e 0.75 × 1.25 × 0.75 inches\u003c\/li\u003e\n\u003cli data-section-id=\"11vkpjr\" data-start=\"1197\" data-end=\"1228\"\u003e\n\u003cstrong data-start=\"1199\" data-end=\"1215\"\u003eUV Reactive:\u003c\/strong\u003e Yes (365 nm)\u003c\/li\u003e\n\u003cli data-section-id=\"1w48f6c\" data-start=\"1229\" data-end=\"1255\"\u003eMounted display specimen\u003c\/li\u003e\n\u003cli data-section-id=\"1wezdgk\" data-start=\"1256\" data-end=\"1278\"\u003eExact specimen shown\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"p2zpuj\" data-start=\"1280\" data-end=\"1299\"\u003eAbout Mesohippus\u003c\/h2\u003e\n\u003cp data-start=\"1301\" data-end=\"1549\"\u003e\u003cem data-start=\"1301\" data-end=\"1313\"\u003eMesohippus\u003c\/em\u003e represents an important stage in horse evolution, living millions of years before modern horses. Roughly the size of a small dog, it possessed three functional toes and low-crowned teeth adapted for browsing leaves and soft vegetation.\u003c\/p\u003e\n\u003cp data-start=\"1551\" data-end=\"1772\"\u003eThe White River Group of Wyoming is internationally recognized for producing exceptionally preserved Oligocene mammals, making specimens from this locality highly desirable among fossil collectors, educators, and museums.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1punl39\" data-start=\"1774\" data-end=\"1792\"\u003eCollector Notes\u003c\/h2\u003e\n\u003cp data-start=\"1794\" data-end=\"2073\"\u003eThis specimen features well-preserved molars with excellent enamel detail and natural occlusal wear patterns. Combined with its documented White River provenance and attractive UV fluorescence, it makes an outstanding addition to any fossil or vertebrate paleontology collection.\u003c\/p\u003e\n\u003cp data-start=\"2075\" data-end=\"2125\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp data-start=\"2127\" data-end=\"2169\"\u003eYou will receive the exact specimen shown.\u003c\/p\u003e\n\u003cp data-start=\"2171\" data-end=\"2306\"\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":49082079543546,"sku":null,"price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/20260627_103924.jpg?v=1782581216","url":"https:\/\/serenitysoulstones.com\/products\/mesohippus-early-horse-fossil-jaw-section-white-river-group-wyoming-23-grams","provider":"Serenity Soul Stones","version":"1.0","type":"link"}