Mosasaurs were marine reptiles that dominated the oceans of the Late Cretaceous Period, approximately 98-66 million years ago. They are, in fact, a variety of lizard that had become completely adapted to marine life, and are most closely related to monitor lizards. The majority of mosasaurs were the apex predators of their environment, with most of them possessing flesh-ripping teeth, while others had teeth adapted for crunching open shelled mollusks. The largest known mosasaurs are estimated at over 40 ft. long, though some estimates have put particular species as being even larger. The first documented specimen of a mosasaur fossil was in the town of Maastricht, Netherlands in 1764, in which a partial skull was discovered by limestone quarry-workers along the Meuse River. For years it was undecided as to exactly what kind of animal the fossils belonged to, though in 1799 the Dutch mathematician and physicist Adrian Gilles Camper recognized its reptilian affinities. In 1822, English paleontologist and geologist William Conybeare named the creature Mosasaurus, meaning "Meuse Lizard" (after the Meuse River, near where the original fossils were discovered).
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-Tooth Size: 3/4" -Species: Halisaurus arambourgi -Notes: A well-preserved and completely natural tooth from one of the smaller (10'-13' long) mosasaurs. While it may have been dwarfed by its contemporary mosasaur cousins, Halisaurus made up for its lack of immensity in speed. Comes displayed in a glass-covered display box (5&1/2"L...
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-Tooth Size: 1&1/16" -Species: Igdamanosaurus aegyptiacus -Notes: A well-preserved and completely natural tooth from a shell-crushing mosasaur that likely preyed on ammonites. This species was formerly known as Globidens aegyptiacus. Comes displayed in a glass-covered display box (5&1/2"L x 4&1/2"W x 7/8"H). Acrylic stand, not included. -Age: Cretaceous Period, 72-66 million...
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-Tooth Size: 7/8" -Species: Igdamanosaurus aegyptiacus ("Lizard of Mount Igdaman (Niger) and Egypt) -Notes: A well-preserved and completely natural tooth from a shell-crushing mosasaur that likely preyed on ammonites. This species was formerly known as Globidens aegyptiacus. Comes displayed in a glass-covered display box (5&1/2"L x 4&1/2"W x 7/8"H). Acrylic stand, not...
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-Size: 4"L x 1&3/4"W x 3&1/2"H -Species: undetermined (possible genera include Platecarpus, Plesioplatecarpus, Clidastes, Eonatator, Tylosaurus) -Notes: A nice example of a section of jaw from one of the world's most highly adapted ocean predators. Made even more famous now through the Jurassic World film series. Acrylic stand not included....
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-Fossil size: 3&1/4"L x 3"H x 1&1/2"thick -Fossil size on custom display: 5&3/4"L x 5&1/2"W x 3&1/2"H -Species: Species undetermined -Notes: A beautifully preserved pterygoid (roof of mouth) fossil with an excellent tooth. Mosasaurs, along with certain other squamates (like snakes) possessed teeth along the roofs of their mouths that...
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-Size: 4&7/8"L x 2"W x 3"H -Species: undetermined (possible genera include Mosasaurus, Platecarpus, Plioplatecarpus, Prognathodon, Tylosaurus) -Notes: A nice example of a vertebral column from one of the world's most highly adapted ocean predators. Made even more famous now through the Jurassic World film series. -Age: Cretaceous Period, 84-72 million years...
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-Tooth Size: 7/8"L (1&1/8"L with matrix) -Species: Mosasaurus beaugei -Notes: A well-preserved and completely natural tooth from one of the largest mosasaur species known. Comes displayed in a glass-covered display box (5&1/2"L x 4&1/2"W x 7/8"H). Acrylic stand, not included. -Age: Cretaceous Period, 72-66 million years ago -Location: Oulad Abdoun Basin,...
$45.00
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-Tooth Size: 1&1/2" - Matrix Size: 4&3/8"L x 3"W x 2&1/4" deep -Species: Prognathodon sp. -Notes: A well-preserved and completely natural tooth with lots of great bone fragments imbedded in the matrix. Acrylic stand, not included. -Age: Cretaceous Period, 72-66 million years ago -Location: Oulad Abdoun Basin, Khouribga, Morocco
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-Tooth Size: 1&1/8" -Species: Prognathodon sp. -Notes: A well-preserved and completely natural tooth from one of the largest mosasaur species known. Comes displayed in a glass-covered display box (5&1/2"L x 4&1/2"W x 7/8"H). Acrylic stand, not included. -Age: Cretaceous Period, 72-66 million years ago -Location: Oulad Abdoun Basin, Khouribga, Morocco
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-Tooth Size: 2&1/8" -Matrix Size: 4&3/8"L x 3&1/2"W x 1&7/8" deep. -Species: Prognathodon sp. -Notes: A well-preserved and completely natural tooth with lots of great bone fragments imbedded in the matrix. Acrylic stand, not included. -Age: Cretaceous Period, 72-66 million years ago -Location: Oulad Abdoun Basin, Khouribga, Morocco