Publications by Perot Museum Scientists

Atkinson, B.A., D.L. Contreras, R. Stockey, G. Rothwell. 2021. Ancient diversity and turnover of cunninghamioid conifers (Cupressaceae): two new genera from the Upper Cretaceous of Hokkaido, Japan. Botany 99(8): 457-473.

May, M.R., D.L. Contreras, M.A. Sundue, N.S. Nagalingum, C.V. Looy, C.J. Rothfels. 2021. Inferring the total-evidence timescale of Marattialean fern evolution in the face of model sensitivity. Sys Bio. Available at SysBio 70(6): 1232-1255.

Swarup, K., D.L. Contreras, A.B. Leslie. 2021. Serotiny and the evolution of seed cone size in Cupressaceae conifers. International Journal of Plant Sciences 182(1): 9-18. DOI: 10.1086/711470

Chiarenza A.A., A.R. Fiorillo, R.S. Tykoski, P.J. McCarthy, P.P. Flaig, D.L. Contreras. 2020. The first juvenile dromaeosaurid (Dinosauria: Theropoda) from Arctic Alaska. PLOS ONE 15(7): e0235078.

Lendemer, J., B. Thiers, A. Monfils, J. Zaspel, E. Ellwood, A. Bentley, K. Levan, J. Bates, D. Jennings, D. Contreras, L. Lagomarsino, P. Mabee, L. Ford, R. Guralnick, R. Gropp, M. Revelez, N. Cobb, K. Seltmann, M.C. Aime. 2019. The Extended Specimen Network: A Strategy to Enhance US Biodiversity Collections, Promote Research and Education. Biosciences 70(1): 23-30.

Contreras, D.L., I. Escapa, R. Irabarren, R. Cuneo. 2019. Reconstructing the early evolution of the Cupressaceae: a whole plant description of a new Austrohamia species from the Cañadon Asfalto Formation (early Jurassic), Argentina. International Journal of Plant Sciences 180(8): 834-868.

Contreras, D.L. 2018. A workflow and protocol describing the field to digitization process for new project-based fossil leaf collections. Applications in Plant Sciences 6(2): e1025.

Contreras, D.L., I.A.P. Duijnstee, S.L. Ranks, C.R. Marshall, C.V. Looy. 2017. Evolution of dispersal strategies in conifers: convergence and divergence in the morphology of diaspores. Perspectives in Plant Ecology, Evolution, and Systematics 24: 93−117.

Falcon-Lang, H.J., S.G. Lucas, H. Kerp, K. Krainer, I.P. Montañez, D. Vachard, D.S. Chaney, W.J. Nelson, S.D. Elrick, D.L. Contreras, F. Kurzawe, W.A. DiMichele, C.V. Looy. 2015. Early Permian (Asselian) vegetation from a seasonally dry coast in western equatorial Pangaea: Palaeoecology and evolutionary significance. Palaeogeography, Palaeoclimatology, Palaeoecology 43: 158−173.

Estrada-Ruiz, E., J.M. Parrott, G.R. Upchurch Jr., E.A. Wheeler, D.L. Thompson, G.H. Mack, M.M. Murray. 2012. The wood flora from the Upper Cretaceous Crevasse Canyon and McRae formations, south-central New Mexico, USA: A progress report. New Mexico Geological Society Guidebook, Geology of the Warm Springs Region 63: 503−518.

Fiorillo, A. R. and R. S. Tykoski. 2022. Paleobiological inferences from paleopathological occurrences in the Arctic ceratopsian Pachyrhinosaurus perotorum. The Anatomical Record. DOI: 10.1002/ar.25104

Chiarenza, A. A., A. R. Fiorillo, R. S. Tykoski, P. J. McCarthy, P. P. Flag, and D. L. Contreras. 2020. The first juvenile dromaeosaurid (Dinosauria: Theropoda) from Arctic Alaska. PLoS ONE 15(7): e0235078

Takasaki, R., A. R. Fiorillo, R. S. Tykoski, and Y. Kobayashi. 2020. Re-examination of the cranial osteology of the Arctic Alaskan hadrosaurine with implications for its taxonomic status. PLoS ONE 15(5): e0232410 (Open Access)

Fiorillo, A. R., Y. Kobayashi, P. J. McCarthy, T. Tanaka, R. S. Tykoski, Y-N. Lee, R. Takasaki, J. Yoshida.  2019.  Dinosaur ichnology and sedimentology of the Chignik Formation (Upper Cretaceous), Aniakchak National Monument, southwestern Alaska; further insights on habitat preferences of high-latitude dinosaurs.  PLoS ONE 14(10): e0223471 (Open Access)

Takasaki, R., A. R. Fiorillo, Y. Kobayashi, R.S. Tykoski, P.J. McCarthy.  2019.  The first definitive lambeosaurine bone from the Liscomb Bonebed of the Upper Cretaceous Prince Creek Formation, Alaska, United States.  Scientific Reports 9:5384 (Open Access)

Tykoski, R. S., A. R. Fiorillo, and K. Chiba.  2019.  New data and diagnosis for the Arctic ceratopsid dinosaur Pachyrhinosaurus perotorum.  Journal of Systematic Palaeontology 17:1397-1416.

Fiorillo, A. R., P. J. McCarthy, Y. Kobayashi, C. S. Tomsich, R. S. Tykoski, Y.-N. Lee, T. Tanaka, and C. R. Noto. 2018. An unusual association of hadrosaur and therizinosaur tracks within Late Cretaceous rocks of Denali National Park, Alaska. Scientific Reports 8, 11706. (Open Access)

Fiorillo, A. R., and R. S. Tykoski.  2016.  Small hadrosaur manus and pes tracks from the lower Cantwell Formation (Upper Cretaceous) Denali National Park, Alaska: implications for locomotion in juvenile hadrosaurs.  PALAIOS 31(10):479-482.

Tykoski, R. S., and A. R. Fiorillo.  2016.  An articulated cervical series of Alamosaurus sanjuanensis Gilmore, 1922 (Dinosauria, Sauropoda) from Texas: new perspective on the relationships of North America’s last giant sauropod.  Journal of Systematic Palaeontology. doi:10.1080/14772019.2016.1183150  (Open Access)

Fiorillo, A. R., and R. S. Tykoski.  2014.  A diminutive new tyrannosaur from the top of the world.  PLOS ONE 9(3): e91287. doi:10.1371/journal.pone.0091287 (Open Access)

Tykoski, R. S., and A. R. Fiorillo.  2013.  Beauty or Brains?  The braincase of Pachyrhinosaurus perotorum and its utility for species-level distinction in the centrosaurine ceratopsid Pachyrhinosaurus.  Earth and Environmental Science Transactions of the Royal Society of Edinburgh 103 (3/4):487-499.

Fiorillo, A. R. and R. S. Tykoski.  2013.  An immature Pachyrhinosaurus perotorum (Dinosauria: Ceratopsidae) nasal reveals unexpected complexity of craniofacial ontogeny and integument in Pachyrhinosaurus.  PLoS ONE 8(6):e65802. doi:10.1371/journal.pone.0065802 (Open Access)

Fiorillo, A. R., and R. S. Tykoski.  2012.  A new species of the centrosaurine ceratopsid Pachyrhinosaurus from the North Slope (Prince Creek Formation: Maastrichtian) of Alaska.  Acta Palaeontologica Polonica 57(3):561-573. doi: (Open Access)

Tykoski, R. S., and A. R. Fiorillo.  2010.  An enantiornithine bird from the lower Middle Cenomanian of Texas.  Journal of Vertebrate Paleontology 30(1):288-292.

Fiorillo, A. R., R. S. Tykoski, P. J. Currie, P. J. McCarthy, and P. Flaig.  2009.  Description of two partial Troodon braincases from the Prince Creek Formation (Upper Cretaceous), North Slope Alaska.  Journal of Vertebrate Paleontology 29(1):178-187.

Tykoski, R.  2007.  Small theropods, big ideas; pp. 86 in T. Holtz, Jr., Dinosaurs: the most complete, up-to-date encyclopedia for dinosaur lovers of all ages.  Random House, New York, New York.

Allain, R., R. Tykoski, N. Aquesbi, N.-E. Jalil, M. Monbaron, D. Russell, and P. Taquet.  2007.  An abelisauroid (Dinosauria: Theropoda) from the Early Jurassic of the High Atlas Mountains, Morocco, and the radiation of ceratosaurs.  Journal of Vertebrate Paleontology 27(3):610-624.

Tykoski, R. S.  2005.  Vertebrate paleontology in the Arizona Jurassic; pp. 72-93 in R. D. McCord (ed.), Vertebrate Paleontology of Arizona.  Mesa Southwest Museum Bulletin Number 11.  Mesa, Arizona.

Tykoski, R. S., and T. Rowe.  2004.  Ceratosauria; pp. 47-70 in D. B. Weishampel, P. Dodson, and H. Osmólska (eds.), The Dinosauria (Second Edition).  University of California Press, Berkeley, California.

Tykoski, R. S., T. Rowe, M. Colbert, and R. Ketchem.  2002.  A new crocodyliform from the Kayenta Formation (Early Jurassic) of Arizona.  Journal of Vertebrate Paleontology 22(3):593-611.

Tykoski, R. S., C. A. Forster, T. Rowe, S. D. Sampson, and D. Munyikwa.  2002.  A furcula in the coelophysid theropod Syntarsus.  Journal of Vertebrate Paleontology 22(3):728-733.

Rowe, T., R. S. Tykoski, and J. Hutchinson.  1997.  Ceratosauria; pp. 106-110 in P. J. Currie and K. Carpenter (eds.), Encyclopedia of Dinosaurs. Academic Press, San Diego, California.