{"product_id":"fossilized-dinosaur-tooth-hn993","title":"Albertosaurus sarcophagus premax tooth 1.1\" (2.75 cm), Drumheller, Alberta, Canada (disposition #001590)","description":"\u003cp\u003eHere is a special, \u003cstrong\u003e1.1\" (2.75cm) long \u003cem\u003eAlbertosaurus sarcophagus\u003c\/em\u003e premaxilla tooth\u003c\/strong\u003e from the \u003cstrong\u003eDrumheller area of Alberta, Canada\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDon't let the smaller size fool you\u003c\/strong\u003e. This is a tooth from the front of the upper jaw (\u003cstrong\u003epremaxilla\u003c\/strong\u003e) of an Albertosaurus, often referred to as a \"premax tooth\". Premax teeth can be identified by their unusual flat face with a parallel row of serrations (denticles) and \"D-shaped\" basal cross-section. Unlike the larger, blade-like cheek (side) teeth, premax teeth are comparatively much smaller even in a full-size adult. Thus, a tooth of the size shown here is still from a large predator that may have had much longer cheek teeth. More importantly, within the jaw there are only four premax teeth per side out of a total of 58 teeth in the typical Albertosaur, which make premax teeth much more rare. This particular tooth is complete with minor natural wear on the tip and no repairs or restorations.\u003c\/p\u003e\n\u003cp\u003eThe specimen rests on Styrofoam base within a golden box accompanied by a label reading “Dinosaur Tooth, Drumheller, Alta”. These particular golden boxes were used by Green's Rock \u0026amp; Lapidary in Calgary back in the late 1960s-early 1970s to sell dinosaur teeth prior to the introduction of fossil legislation in Alberta. Harvey purchased this tooth from Green's during that time period.\u003c\/p\u003e\n\u003cp\u003eThe rocks exposed in this area are from the \u003cstrong\u003eHorseshoe Canyon Formation\u003c\/strong\u003e (believed to be\u003cstrong\u003e 68 - 73.1 million years old\u003c\/strong\u003e). The only formally-recognized large theropod from this formation is \u003cstrong\u003e\u003cem\u003eAlbertosaurus sarcophagus, \u003c\/em\u003e\u003c\/strong\u003ewhich was a very large meat-eating dinosaur that could grow up to 9 meters (30 feet) long, weighing just over 1 ton. There were over 50 serrated, sharp teeth in its giant 1 meter long skull! Pre-dating \u003cem\u003eTyrannosaurus rex\u003c\/em\u003e by several million years, it was smaller than \u003cem\u003eT. rex \u003c\/em\u003ebut the apex predator of its day.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/keithrocks.ca\/pages\/alberta-tyrannosaurs-species-formations-geological-ages\" title=\"More about Alberta theropod dinosaurs\"\u003e\u003cstrong\u003eMore about Alberta theropod dinosaurs\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSpecies:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003cem\u003eAlbertosaurus sarcop\u003c\/em\u003e\u003c\/span\u003e\u003cspan\u003e\u003cem\u003ehagus\u003c\/em\u003e\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eAge:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Late Cretaceous (Campanian to early Maastrichtian or 68-73.1 million years ago)\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eFormation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Horseshoe Canyon Formation (Edmonton Group)\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eLocality:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Red Deer River valley, Drumheller area, Alberta, Canada\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Tooth size: 2.75 x 1 cm\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eProvenance: \u003c\/strong\u003eGreen's Rock \u0026amp; Lapidary (Calgary); Harvey Negrich\u003cstrong\u003e\u003cbr\u003eAlberta Disposition Certificate Number\u003c\/strong\u003e: 001590 (specimen #HN993) issued July 7, 2026\u003c\/span\u003e\u003c\/p\u003e","brand":"Rocky Mountain Minerals and Fossils","offers":[{"title":"Default Title","offer_id":52932503011610,"sku":null,"price":600.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/6011\/1386\/files\/fossilized-dinosaur-tooth01.jpg?v=1790115258","url":"https:\/\/keithrocks.ca\/products\/fossilized-dinosaur-tooth-hn993","provider":"Rocky Mountain Minerals and Fossils","version":"1.0","type":"link"}