Garden Park Fossil AreaMuseum Blog


Allosaurus tooth, Object ID: BLM-2014.116-V-118

Recently, this Allosaurus tooth was found in the Garden Park Fossil Area. Andrew Smith, paleontologist with the Bureau of Land Management, excavated and prepared the tooth. It is an anterior tooth, located in the front of the mouth. Allosaurus teeth are serrated which would have been helpful in gripping and ripping meat. Similar to sharks, Allosaurus lost and regrew teeth many times throughout its life.

The Allosaurus lived during the Jurassic Period, around 155 million years ago and was a theropod, walking on its hind legs with short forelimbs. Allosaurus was a carnivore, meaning it ate meat, putting other dinosaurs such as stegosaurus on the menu. It would have been around 30-33 feet long and stood around 28 feet in height on average. The first definitive remains of Allosaurus were identified by Othniel Marsh in 1877 for a quarry located in Garden Park. He named that species Allosaurus fragilis, meaning “different lizard” as its vertebrae were different than anything else discovered at that point.

Serration visible on tooth in situ, photographed by Andrew Smith. Object ID: BLM-2014.116-V-118
Allosaurus tooth, photographed by Andrew Smith. Object ID: BLM-2014.116-V-118.

To watch a video of the prep work of the tooth, click here.

The information presented in this article is compiled using research conducted by the Royal Gorge Regional Museum and History Center.

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