This Is a BEAUTIFUL tooth from Nanotyrannus lancensis from the Hell Creek Formation in Carter County, Montana, USA! The tooth has great serrations front and back, a good tip, and a partial root with no repair or restoration! It measures .396 inches (1 cm) slant length and comes in a 1 inch gem jar for easy transport and display!
Nanotyrannus is a truly fascinating story both evolutionarily and historically. Found alongside its much larger cousin, the infamous T-rex, paleontologist have long debated whether Nanotyrannus is a distinct species or just juvenile T-rexes. This fierce debate continues today, with many paleontologist subscribing to either side. If Nanotyrannus is a valid species, it represents a strange turn in Tyrannosaur evolution. During the last 15 million years of the Cretaceous period, the Tyrannosaurs of North America were getting progressively larger, a process which culminated in T-rex. Nanotyrannus however lived, alongside T-rex and yet was much smaller (about 16 feet long) than the proceeding Tyrannosaurs which it itself evolved from!
A great piece from a fascinating North American dinosaur at the center of one of the greatest debates in the history of paleontology!
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Species: Nanotyrannus lancensis
Size: .396 inches (1 cm) slant length
Found: Carter County, Montana, USA
Formation: Hell Creek Formation
Age: 68-66 million years old
Repair: None