Portal:Paleontology/On this day/October 27
=== [[October 27]]: ===
- 1857 -
Extreme Cranial Ontogeny in the Upper Cretaceous Dinosaur Pachycephalosaurus
John R. Horner, Mark B. Goodwin
published 27 Oct 2009
Extreme Cranial Ontogeny in the Upper Cretaceous Dinosaur Pachycephalosaurus
John R. Horner, Mark B. Goodwin
published 27 Oct 2009