A diminutive new tyrannosaur from the top of the world.

by Anthony R Fiorillo, Ronald S Tykoski
Published 2014-01-01

An Immature Pachyrhinosaurus perotorum (Dinosauria: Ceratopsidae) Nasal Reveals Unexpected Complexity of Craniofacial Ontogeny and Integument in Pachyrhinosaurus.

by Anthony R Fiorillo, Ronald S Tykoski
Published 2013-01-01

Re-examination of the cranial osteology of the Arctic Alaskan hadrosaurine with implications for its taxonomic status.

by Ryuji Takasaki, Anthony R Fiorillo, Ronald S Tykoski, Yoshitsugu Kobayashi
Published 2020-01-01

The first juvenile dromaeosaurid (Dinosauria: Theropoda) from Arctic Alaska.

by Alfio Alessandro Chiarenza, Anthony R Fiorillo, Ronald S Tykoski, Paul J McCarthy, Peter P Flaig, Dori L Contreras
Published 2020-01-01

Dinosaur ichnology and sedimentology of the Chignik Formation (Upper Cretaceous), Aniakchak National Monument, southwestern Alaska; Further insights on habitat preferences of high-...

by Anthony R Fiorillo, Yoshitsugu Kobayashi, Paul J McCarthy, Tomonori Tanaka, Ronald S Tykoski, Yuong-Nam Lee, Ryuji Takasaki, Junki Yoshida
Published 2019-01-01

An unusual association of hadrosaur and therizinosaur tracks within Late Cretaceous rocks of Denali National Park, Alaska

by Anthony R. Fiorillo, Paul J. McCarthy, Yoshitsugu Kobayashi, Carla S. Tomsich, Ronald S. Tykoski, Yuong-Nam Lee, Tomonori Tanaka, Christopher R. Noto
Published 2018-08-01