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Welcome!

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I am a Hoosier-grown vertebrate paleontologist by way of Texas and Arizona. I live in Holbrook, Arizona and I am the lead park paleontologist at Petrified Forest National Park. I am interested in vertebrate, invertebrate, plant, and trace fossil transitions across the Triassic-Jurassic boundary. I conduct research all around the Colorado Plateau and enjoy working in a variety of museum collections.

Petrified Forest National Park
Jackson School Museum of Earth History

Associated Links

Museum of Northern Arizona
Navajo Nation Minerals Department
 Brian Engh Paleoart
Materials Science of Actinides EFRC

Recent Press Articles

Funky fossil: New discovery named after Ohio Players hit. Dayton.com, January 25, 2023. https://www.dayton.com/what-to-know/funky-fossil-new-discovery-named-after-ohio-players-hit/UTLUKVLA6RAWPFZFDOSAPVIM2M/

This ancient reptile was discovered in Arizona's 'Triassic Park'. Now it has a new name. 12news, September 28, 2022. https://www.12news.com/article/news/local/arizona/newly-discovered-ancient-reptile-species-named-arizona-couple/75-b4ae7736-2bfb-433c-bbbe-70ddb35e9c63.


National Park Service interns unearthed fossils of a bizarre 220-million-year-old reptile. CNN, October 16, 2020. https://www.cnn.com/2020/10/16/us/reptile-fossil-220-million-years-arizona-scn-trnd/index.html​.


'Jurassic Park' got almost everything wrong about this iconic dinosaur. National Geographic, July 7, 2020. https://www.nationalgeographic.com/science/2020/07/jurassic-park-got-almost-everything-wrong-about-iconic-dinosaur-dilophosaurus/.

Rare frog fossil sheds light on a gap in Arizona geologic record. Arizona Daily Sun, May 13, 2019. https://azdailysun.com/news/local/rare-frog-fossil-sheds-light-on-a-gap-in-arizona/article_66c9cf2c-4f34-5c0c-bd42-13cd8ec70d11.html.

Paleontologists identify small fossils as that of oldest frog relative found in North America. Virginia Tech Daily, February 27, 2019. https://vtnews.vt.edu/articles/2019/02/Science-Chinle_frog_fossil_northamerica.html.

Fossil finding reveals how some dinosaurs got so big. The Daily Texas, October 22, 2018. https://www.dailytexanonline.com/2018/10/23/fossil-finding-reveals-how-some-dinosaurs-got-so-big.

Newly described fossils could help reveal why some dinos got so big. Phys.Org, October 10, 2018. https://phys.org/news/2018-10-newly-fossils-reveal-dinos-big.html.

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