Geology

Joseph Frederickson, Ph.D.

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Education

Ph.D. 2018, Ecology and Evolutionary Biology, University of Oklahoma

M.S. 2013, Geology/Geology, Temple University

B.A. 2011, University of Wisconsin Milwaukee

Academic/Professional Appointments

2019-present   Weis Earth Science Museum Director, University of Wisconsin Fox Cities Campus

2018-present   Research Associate, Department of Vertebrate Paleontology

2018-2019        Assistant Professor, Southwestern Oklahoma State University

Selected Awards

• College of Arts and Sciences Organized Research Award, SW Oklahoma State University

• Guy Hagin Endowment Research Grant, SW Oklahoma University

• Provost Certificate of Distinction in Teaching, Univ. of Oklahoma

Courses Taught

• Earth Science Museums and Collections

Research Interests

• Paleontology

Publications (peer-reviewed)

Frederickson, J. A., et al. 2022. Mammalian ecology of the Optima Fauna of Oklahoma (Miocene; Late Hemphillian). Acta Palaeontologica Polonica.

Suarez, C.A., Frederickson, J., Cifelli, R.L., Pittman, J.G., Nydam, R.L., Hunt-Foster, R.K. and Morgan, K., 2021. A new vertebrate fauna from the Lower Cretaceous Holly Creek Formation of the Trinity Group, southwest Arkansas, USA. PeerJ, 9, p.e12242.

Frederickson, J. A., Engel, M. H., and Cifelli, R. L. 2020. Ontogenetic dietary shifts in Deinonychus antirrhopus (Theropoda; Dromaeosauridae): insights into the ecology and social behavior of raptorial dinosaurs through stable isotope analysis. Palaeogeography, Palaeoclimatology, Palaeoecology.

Hunt, T. C., Peterson, J. E., Frederickson, J. A., et al. 2019. First Documented Pathologies in Tenontosaurus tilletti with Comments on Infection in Non-Avian Dinosaurs. Nature: Scientific Reports.

Frederickson, J. A., Engel, M. H., and Cifelli, R. L. 2018. Niche partitioning in theropod dinosaurs: diet and habitat preference in predators from the uppermost Cedar Mountain Formation (Utah, U.S.A.). Nature: Scientific Reports, 8(1), 1-13.

Frederickson, J. A., Lipka, T. R., and Cifelli, R. L. 2018. Faunal composition and paleoenvironment of the Arundel Clay (Potomac Formation; Early Cretaceous), Maryland, USA. Palaeontologia Electronica, 21.2.31A.

Cohen, J. E., Hunt, T. C., Frederickson, J. A., Berry, J., and Cifelli, R. L. 2018. A new azhdarchid pterosaur from the Late Cretaceous (Turonian) of Utah, USA. Cretaceous Research, 86, 60-65.

Frederickson, J. A. and Davis, B. M. 2017. First reported actinopterygian from the Navajo Sandstone (Lower Jurassic: Glen Canyon Group) of southern Utah, USA. Journal of Paleontology, 91(3), 548–553.

Frederickson, J. A., Cohen, J. E., Hunt, T. C., and Cifelli, R. L. 2017. A new occurrence of Dakotasuchus kingi from the Late Cretaceous of Utah, U.S.A., and the diagnostic utility of postcranial characters in Crocodyliformes. Acta Palaeontologica Polonica, 62(2), 279–286.

Frederickson, J. A. and Cifelli, R. L. 2017. New Cretaceous lungfishes (Dipnoi, Ceratodontidae) from western North America. Journal of Paleontology, 91(1), 146–161.

Frederickson, J. A., Lipka, T. R., and Cifelli, R. L. 2016. New Early Cretaceous lungfish (Dipnoi, Ceratodus) from the eastern USA. Journal of Vertebrate Paleontology, 36(4), e1136316.

Frederickson, J. A., Cohen, J. E., and Berry, J. 2016. Ontogeny and life history of a large Lamniform Shark from the Lower Cretaceous of North America. Cretaceous Research, 59, 272–277.

Frederickson, J. A., Cohen, J. E., and Cifelli, R. L. 2015. First record of a non- Tenontosaurus ornithischian from the Antlers Formation (Early Cretaceous) of southeastern Oklahoma. Proceedings of the Oklahoma Academy of Sciences, 95, 62-66.

Frederickson, J.A., Schaefer, S. N., and Doucette-Frederickson, J. A. 2015. A Gigantic Shark from the Lower Cretaceous Duck Creek Formation of Texas. PLoS ONE 10(6): e0127162. doi:10.1371/journal.pone.0127162

Frederickson, J. A. and Tumarkin-Deratzian, A. R. 2014. Craniofacial ontogeny in Centrosaurus apertus. PeerJ 2:e252 http://dx.doi.org/10.7717/peerj.252

Fraiser, M. L., Twitchett, R. J., Frederickson, J. A., Metcalfe, B., Bottjer, D. J. 2010. Gastropod evidence against the Early Triassic Lilliput effect: Comment: Geology, doi:10.1130/G31614C.1.

Selected Abstracts

Krueger*, M., Frederickson, J.A., Johnson, B. 2021. Comparison and Analysis of Ichthyosaurus breviceps and Ichthyosaurus communis to new Three-Dimensional Jurassic-aged Ichthyosaurus Skull Fossil, found on the Dorset Coast, UK. Geological Society of America, North-Central/South-Central Joint Regional Meeting.

Frederickson, J. A., Davis, B. M., Cifelli, R. L. 2020. A New Associated Skeleton of The Rare Sphenodontian Eilenodon robustus From The Upper Jurassic Morrison Formation of Utah. Journal of Vertebrate Paleontology, Program and abstracts 40.

Wilbert, G. A., Cohen, J. E., Frederickson, J. A., et al. 2019. Paleoecological Analysis of Carnivorans From the Optima Local Fauna of Oklahoma (Miocene; Late Hemphillian). Journal of Vertebrate Paleontology, Program and abstracts 40.

Schaefer, S. N. and Frederickson, J. A. 2019. Vertebrate Fauna of the Early Cretaceous (Albian) Kiowa Formation From Clark State Fishing Lake, Clark County, Kansas. Geological Society of America Abstracts with Programs, 51(5).

Frederickson, J. A., Cohen, J. E., Castaneda*, O. et al. Paleoecological Analysis of Herbivores From the Optima Local Fauna of Oklahoma (Miocene; Late Hemphillian). Geological Society of America Abstracts with Programs, 51(5).

Frederickson, J. A. Ontogenetic Dietary Shifts in Deinonychus antirrhopus (Theropoda; Dromaeosauridae). 2018. Journal of Vertebrate Paleontology, Program and abstracts 38.

Wilbert, G. A., Frederickson, J. A., et al. 2018. New Ictiobus Species (Cypriniformes, Catostomidae) From the Late Miocene (Clarendonian) Ogallala Formation, Beaver County, Oklahoma. Journal of Vertebrate Paleontology, Program and abstracts 38.

Suarez, C. A., Frederickson, J. A., et al. 2017. The First Multi-Taxa Vertebrate Assemblage from The Mesozoic Of Arkansas, USA. Geological Society of America South Central Meeting, 50(1) 2-8.

Cohen, J. E. and Frederickson, J. A. 2017. The Effect of Wear on The Placement of Landmarks on Mammalian Dentitions Using Two- And Three-Dimensional Geometric Morphometrics. Geological Society of America Abstracts with Programs, 49(6).

Wilbert, G. A., Frederickson, J. A., Cohen, J. E., and Cifelli, R. L. 2017. New Additions to the Ichthyofauna of the Antlers Formation (Aptian-Albian) of Southeastern Oklahoma. Geological Society of America Abstracts with Programs, 49(6).

Suarez, C. A., Frederickson, J. A., et al. 2017. The Vertebrate Fauna from The Lower Cretaceous Holly Creek Formation. The First Multi-Taxa Vertebrate Assemblage from The Mesozoic Of Arkansas, USA. Geological Society of America Abstracts with Programs, 49(6).

Hunt, T. C., Peterson, J. E., Frederickson, J. A., Cohen, J. E., and Berry, J. L. 2017. New Insights into Tenontosaurus tilletti (Dinosauria; Ornithopoda) from an exceptionally preserved specimen. Journal of Vertebrate Paleontology, Program GRANTS, AWARDS, AND SCHOLARSHIPS and Abstracts 37.

Frederickson, J.A., Cifelli, R. L., and Engel, M. H. 2017. Theropod ecology of the middle Cretaceous: diet and habitat preference in small to medium-size predators from the uppermost Cedar Mountain Formation of Utah, U.S.A. Journal of Vertebrate Paleontology, Program and Abstracts 37.

Frederickson, J.A., Lipka, T.R. and Cifelli, R. L. 2015. Faunal composition and paleoenvironment of the Arundel Clay (Potomac Group; Early Cretaceous). Journal of Vertebrate Paleontology, Program and Abstracts 35.

Frederickson, J.A. and Cifelli, R. L. 2014. Cretaceous Lungfish (genus: Ceratodus) Diversity of North America. Geological Society of America Abstracts with Programs, 46(6), 545.

Frederickson, J.A. 2012. Cranial Development of Centrosaurus apertus: Understanding Horn Variation and Evolution Through an Ontogenetic Approach. Journal of Vertebrate Paleontology, SVP Program and Abstracts Book 32.

Frederickson, J.A. 2011. Sexual Dimorphism is a Derived Condition in the Evolution of Horned Dinosaurs (Ornithischia: Neoceratopsia): Evidence from Growth Series of Pachyrhinosaurus lakustai and Protoceratops andrewsi. Geological Society of America Abstracts with Programs, 43(1) 119.

Frederickson, J.A. 2011. A Quantitative Cladistic Reconstruction of Craniofacial Ontogeny in Protoceratops andrewsi. Journal of Vertebrate Paleontology, SVP Program and Abstracts Book 31.