{"product_id":"hadrosaur-jaw-tooth-fragments-alberta-hn284","title":"Hadrosaur Dentary Fragment with Preserved Tooth Fragments, Alberta (disposition #001590)","description":"\u003cp\u003e\u003cspan\u003eThis \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehadrosaur jaw fragment\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e from Alberta preserves part of the dental battery, with \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003etooth fragments still embedded in the jaw\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Measuring \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10.5 × 5 × 6 cm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the specimen exposes closely spaced tooth positions and surviving dental material, providing an instructive view of the relationship between the teeth and their supporting bone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHadrosaurs, commonly known as \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003educk-billed dinosaurs\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, possessed highly specialized jaws containing tightly packed groups of teeth. Successive replacement teeth developed beneath the working teeth, maintaining a surface for processing plant material as older teeth wore down. The upper and lower dental batteries worked together to break down vegetation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHere, the incomplete preservation exposes portions of that feeding apparatus. Elongated tooth fragments can be seen alongside the parallel grooves of the jaw, while another view reveals broken sections through the retained dental material. The specimen also shows visible cracks, weathered bone surfaces and irregular broken margins. The preserved teeth are fragmentary rather than complete crowns.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFrom the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eHarvey Negrich Collection\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this specimen offers more than the outline of a dinosaur jaw: it retains elements of the dental system itself. The combination of jaw structure and embedded tooth fragments makes it a particularly engaging addition to a collection focused on Alberta’s dinosaurs or dinosaur feeding adaptations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLegal Status:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\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. \u003c\/span\u003e\u003ca href=\"https:\/\/keithrocks.ca\/pages\/alberta-fossils-disposition-ownership-legal-status\" title=\"Alberta Fossils: Disposition, Ownership \u0026amp; Legal Status\"\u003e\u003cstrong\u003e\u003cspan\u003eLearn more about Alberta fossils and the disposition process.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFamily:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Hadrosauridae indet. (hadrosaur; exact species undetermined)\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAge:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Late Cretaceous (Campanian or 74.8 - 77.5 million years ago)\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eFormation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Dinosaur Park or Oldman formation (Belly River\/Judith River Group)\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLocality:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e North of Brooks, Alberta, Canada\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10.5 × 5 × 6 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 \u003c\/span\u003e#HN284\u003cspan\u003e) issued July 7, 2026\u003c\/span\u003e\u003c\/p\u003e","brand":"Rocky Mountain Minerals and Fossils","offers":[{"title":"Default Title","offer_id":53280858571034,"sku":null,"price":65.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/6011\/1386\/files\/hadrosaur-jaw-tooth-fragments-alberta_01.jpg?v=1793574335","url":"https:\/\/keithrocks.ca\/products\/hadrosaur-jaw-tooth-fragments-alberta-hn284","provider":"Rocky Mountain Minerals and Fossils","version":"1.0","type":"link"}