Est. $350-$525
Artemis Fine ArtsLouisville, CO
![Mosasaur 'Marine Dinosaur' Fossil Tooth on Composite Rock: Cretaceous Period, circa 145-65 million years B.P. The tooth showing dark brown enamel, set in a sandstone matrix with a composite root for display. 567 grams, 15 cm (5 7/8 in.). [No Reserve] From Mor](https://p1.liveauctioneers.com/1191/415806/231335386_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £30-£40
TimeLine Auctions Ltd.Harwich, Essex
Est. £40-£60
TimeLine Auctions Ltd.Harwich, Essex
![Large Spinosaurus Dinosaur Fossil Tooth: Cretaceous Period, circa 125-113 million years B.P. Displaying deep brown patina, repaired. 18.86 grams, 63 mm (2 1/2 in.). [No Reserve] From Morocco, North Africa. From a Cambridgeshire, UK, collecti](https://p1.liveauctioneers.com/1191/415806/231335471_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £30-£40
TimeLine Auctions Ltd.Harwich, Essex
![Large Mosasaur 'Marine Dinosaur' Fossil Tooth with Natural Root: Cretaceous Period, circa 145-65 million years B.P. The tooth showing dark brown enamel, set in a sandstone matrix with a composite root for display. 562 grams, 14.5 cm (5 3/4 in.). [No Reserve] From M](https://p1.liveauctioneers.com/1191/415806/231335334_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £40-£60
TimeLine Auctions Ltd.Harwich, Essex
![Very Large Spinosaurus Dinosaur Fossil Tooth: Cretaceous Period, circa 125-113 million years B.P. Slightly curving tooth with striations, restored. 109 grams, 10.8 cm (4 1/4 in.). [No Reserve] From Morocco, North Africa. From a Cambridgeshire, UK](https://p1.liveauctioneers.com/1191/415806/231335500_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £60-£80
TimeLine Auctions Ltd.Harwich, Essex
![Mosasaur 'Marine Dinosaur' Fossil Tooth Group: Cretaceous Period, circa 145-65 million years B.P. Comprising two teeth showing good brown enamel, repaired. 67.7 grams total, 45-59 mm (1 3/4 - 2 1/4 in.). [2, No Reserve] From Morocco, North Africa.](https://p1.liveauctioneers.com/1191/415806/231335338_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £40-£60
TimeLine Auctions Ltd.Harwich, Essex
Est. €40-€60
Templum Fine Art AuctionsBarcelona , ES
Chairish AuctionsNew York, NY
Chairish AuctionsNew York, NY
Artemis Fine ArtsLouisville, CO
Chairish AuctionsNew York, NY
Chairish AuctionsNew York, NY
Artemis Fine ArtsLouisville, CO
Chairish AuctionsNew York, NY
![Mosasaur 'Marine Dinosaur' Fossil Jaw Fragment: Cretaceous Period, circa 145-65 million years B.P. A composite jaw fragment set with a single tooth showing good brown enamel. 151 grams, 11 cm (4 1/4 in.). [No Reserve] From Morocco, North Africa. Fr](https://p1.liveauctioneers.com/1191/415806/231335429_1_x.jpg?height=280&quality=70&sharpen=true&version=1777479005&width=280)
Est. £30-£40
TimeLine Auctions Ltd.Harwich, Essex
Est. $500-$550
Weatherham Estate TreasuresCobourg, ON
Est. $200-$300
Weatherham Estate TreasuresCobourg, ON
Est. $150-$200
Weatherham Estate TreasuresCobourg, ON
Est. $150-$250
Weatherham Estate TreasuresCobourg, ON
Est. $350-$525
Artemis Fine ArtsLouisville, CO
Est. $350-$400
Weatherham Estate TreasuresCobourg, ON
Est. $350-$400
Weatherham Estate TreasuresCobourg, ON
Est. $250-$350
Weatherham Estate TreasuresCobourg, ON
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