{"product_id":"hadrosaur-jaw-bone-alberta-badlands-hn634","title":"Hadrosaur Dentary (dinosaur jaw), Drumheller area, Alberta (disposition #001590)","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eA substantial\u003cstrong\u003e hadrosaur dentary \u003c\/strong\u003efrom the \u003cstrong\u003eHorseshoe Canyon Formation near Drumheller, Alberta\u003c\/strong\u003e.  \u003cstrong\u003eH\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eadrosaurs\u003c\/strong\u003e, commonly known as \u003cstrong\u003educk-billed dinosaurs\u003c\/strong\u003e, possessed highly specialized jaws containing tightly packed groups of teeth in dental batteries. Teeth would have occupied the prominent grooves or slots, across this 28 cm long specimen.\u003cstrong\u003e \u003c\/strong\u003eSuccessive replacement teeth maintained a working surface for processing plant material as older teeth wore down. It is believed large adults may have had as many as 1800 teeth in the skull but with only 450 functioning at one time; the remainder growing underneath the active teeth ready to replace them once worn out. Their jaws formed an essential part of this remarkable feeding system, with the upper and lower jaws working together to shear edible plant material. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFrom the Harvey Negrich Collection, this specimen offers a tangible connection to that anatomy. Its substantial size, visible structural detail, and collection provenance make it an engaging display piece for collectors interested in Alberta’s dinosaurs. This specimen has been repaired but not restored (coloured or patched) in any manner.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eLegal Status:\u003c\/strong\u003e This specimen is legally available for private ownership and resale under Alberta Disposition Certificate #001590. A copy of the disposition documentation will accompany the specimen. \u003ca href=\"https:\/\/keithrocks.ca\/pages\/alberta-fossils-disposition-ownership-legal-status\" title=\"Disposition, Ownership \u0026amp; Legal Status\"\u003e \u003cstrong\u003eLearn more about Alberta fossils and the disposition process.\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFamily: \u003c\/span\u003e\u003c\/strong\u003eHadrosauridae indet. (hadrosaur; exact species undetermined, but possibly \u003cem\u003eEdmontosaurus\u003c\/em\u003e)\u003cstrong\u003e\u003cspan\u003e\u003cbr\u003eAge: \u003c\/span\u003e\u003c\/strong\u003eLate Cretaceous (Campanian to early Maastrichtian or 68-73.1 million years ago)\u003cstrong\u003e\u003cspan\u003e\u003cbr\u003eFormation: \u003c\/span\u003e\u003c\/strong\u003eHorseshoe Canyon Formation (Edmonton Group)\u003cstrong\u003e\u003cspan\u003e\u003cbr\u003eLocality: \u003c\/span\u003e\u003c\/strong\u003eRed Deer River valley, Drumheller area, Alberta, Canada\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 28 × 8 cm\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eProvenance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Harvey Negrich Collection\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eAlberta Disposition Certificate Number:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 001590 (specimen #HN634) issued July 7, 2026\u003c\/span\u003e\u003c\/p\u003e","brand":"Rocky Mountain Minerals and Fossils","offers":[{"title":"Default Title","offer_id":53068913180954,"sku":null,"price":200.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/6011\/1386\/files\/hadrosaur-jaw-bone-alberta-hn634-02.jpg?v=1791842594","url":"https:\/\/keithrocks.ca\/products\/hadrosaur-jaw-bone-alberta-badlands-hn634","provider":"Rocky Mountain Minerals and Fossils","version":"1.0","type":"link"}