This Is a BEAUTIFUL, Top Quality tooth from Nanotyrannus lancensis from the Hell Creek Formation in Carter County, Montana, USA! The tooth is a rare Premaxillary, one on the teeth from the very front of the jaw similar to our incisors! Premaxillary teeth are much smaller than the large maxillary teeth on the side of the jaw but are MUCH rarer! The tooth has a fantastic tip and a partial root with no repair or restoration! It measures .74 inches (1.9 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: .74 inches (1.9 cm) slant length
Found: Carter County, Montana, USA
Formation: Hell Creek Formation
Age: 68-66 million years old
Repair: None