Specimen: Mosasaurus Tooth
This table contains the geological time periods of the past 2.5 billion years on Earth to aid in understanding age immense age of these fossils.(Ma = Mega-annum = 1,000,000 years)
|EON||ERA||PERIOD||EXTENT (Ma)||DURATION (Ma)|
Mosasaurus was a type of large, carniverous, aquatic lizard. It was technically not a dinosaur, but a reptile closely related to snakes and monitor lizards. Mosasaurus grew up to 50ft (15m) long and existed for about 4 million years until the mass extinction event that ended the Mesozoic period.It lived from about 82 to 66 million years ago during the Campanian and Maastrichtian stages of the Late Cretaceous. The earliest fossils of Mosasaurus known to science were found as skulls in a chalk quarry near the Dutch city of Maastricht in the late 18th century, which were initially thought to have been the bones of crocodiles or whales.
Fossil evidence suggests Mosasaurus inhabited much of the Atlantic Ocean and the seaways adjacent to it. Continents where Mosasaurus fossils have been found include North America, South America, Europe, Africa, Western Asia, and Antarctica. This distribution encompassed a wide range of oceanic climates including tropical, subtropical, temperate, and subpolar climates. Mosasaurus was a common large predator in these oceans and was positioned at the top of the food chain. Paleontologists believe its diet would have included virtually any animal; it likely preyed on bony fish, sharks, cephalopods, birds, and other marine reptiles including sea turtles and other mosasaurs. It likely preferred to hunt in open water near the surface. From an ecological standpoint, Mosasaurus probably had a profound impact on the structuring of marine ecosystems; its arrival in some locations such as the Western Interior Seaway in North America coincides with a complete turnover of faunal assemblages and diversity.
Thank you so much. I love it!
Bought as a gift for a dino loving friend, they very much liked it.
my kid is 10 and he LOVED the tooth, as well as his other purchases! he also like the protective box the tooth came with!
I purchase the tooth for my son’s fossil collection. He loved it. Arrived in time. The fossil has a good size and price was great too.
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