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1 janv. 1938 - Pachycephalosaurus

Description:

Pachycephalosaurus is discovered by William Winkley on the family ranch outside of Ekalaka, Montana.

Ajouté au bande de temps:

Paleontology

23 juin 2022

1

0

217

Date:

1 janv. 1938

Maintenaint

~ Il y a 87 ans

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