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Home > Specimens > Meet Junior Apatosaurus
'Junior' the Apatosaurus, digsiteMEET JUNIOR, THE APATOSAURUS. 'Junior' is a juvenile, plant-eating Sauropod,  probably Apatosaurus - and a significant and scientifically valuable specimen. The unprepared specimen is estimated at 80+% complete, and is fully excavated, jacketed, and in secure storage.

At approximately 25 feet long, the near-complete juvenile Apatosaurus is only 25%-30% the size of an adult of the species - which measure between 70-90 feet long.

Bone quality is excellent. The only areas that may be missing are some foot parts and a chunk of the distal end of tail.

Learn more about Apatosaurus.

Apatosaurus skull parts arm bone

Open to discovery. Junior Apatosaurus in currently unprepared, allowing scientists to discover more about the dinosaur and its taxon as jackets are opened and the bones are prepared. 

The image to the left shows the areas where the skull parts were found, tucked under a pair of arm bones.


Apatosaurus bones

Scientific importance. The skull parts, cervical vertebrae, and ribs will be particularly important in determining that the specimen is definitively Apatosaurus.

The image to the left shows the spapulae, coracoids, and rib bones in the field

Review our map of Junior's bones in the field.

Apatosaurus teeth

Mysterious teeth. In addition to finding skull parts, many teeth were discovered in close proximity to probable jaw bones.

Less peg-like than Diplodocus teeth, and less spoon-shaped than Camarasaurus teeth, the teeth of this dinosaur are narrow and more almond-shaped.

See Junior's tooth comparison image.

Learn more about Jurassic dinosaur specimens found at the digsite.