Tinker the Juvenile Tyrannosaurus rex, Tooth Troodon and some of the larger

and some of the larger specimens reached the range of 12 meters (39 feet) to 13 meters (43 feet) long

Mesohippus bairdii

and was one of the most successful ammonite lineages ever

800 lb) or more

It was reclassified in 1970 by John Ostrom and is currently located at the Teylers Museum in Haarlem

Tinker the Juvenile Tyrannosaurus rex, Tooth Troodon and some of the largerDescription This is a very nice replica Trex tooth from the specimen knows as Tinker, a juvenile. Paleontologist Dr. Robert T. Bakker stated the following: "Tinker is one of the most scientifically significant and most exciting T. rex skeletons ever found, and one of the most important dinosaur specimens from any age and any locale. Tinker is the very first most complete skeletons of a T. rex youngster, an individual only one fourth adult weight."