Randall B. Irmis


University of California Museum of Paleontology
1101 Valley Life Sciences Building
Berkeley, CA 94720-4780

Email: irmis(at)berkeley.edu


Education
• PhD in Integrative Biology
University of California, Berkeley - December 2008

• Extended B.S. in Geology with an Emphasis in Paleontology, Magna Cum Laude
Northern Arizona University - May 2004


Work Experience
• Collections Assistant, University of California Museum of Paleontology - August 2004 to August 2005
• Physical Science Technician (Paleontology), Petrified Forest National Park - May to August 2004
• Physical Science Technician (Paleontology), Petrified Forest National Park - May to August 2003
• Fossil collections database entry, Northern Arizona University - September to December 2002
• Paleontology Internship, Petrified Forest National Park - May to August 2002
• Paleobotany Internship, Cleveland Museum of Natural History - June to August 2001
• Geotechnical Lab Technician, Patrick Engineering - June to August 2000


Teaching Experience
• IB 104L - Natural History of the Vertebrates, Spring 2006 (Graduate Student Instructor)
• IB 35AC - Human Biological Variation, Fall 2005 (Graduate Student Instructor)
• IB 183L - Vertebrate Evolution Lab, Spring 2005 (Graduate Student Instructor)


Research Interests
• Early Mesozoic continental vertebrate ecosystems
• Response of faunas to climate change in deep time
• Early Mesozoic tetrapod biogeography and paleoecology
• Basal archosaur and basal dinosaur phylogeny
• Taphonomic processes


Peer-Reviewed Publications

Nesbitt, Sterling J., Randall B. Irmis, William G. Parker, Nathan D. Smith, Alan H. Turner, and Timothy Rowe. In press. Hindlimb osteology and distribution of basal dinosauromorphs from the Late Triassic of North America. Journal of Vertebrate Paleontology.

Parker, William G., Michelle R. Stocker, and Randall B. Irmis. 2008. A new desmatosuchine aetosaur (Archosauria: Pseudosuchia) from the Upper Triassic Tecovas Formation (Dockum Group) of Texas. Journal of Vertebrate Paleontology 28(3):692-701. [E-mail me for a copy]

Irmis, Randall B., and Fabien Knoll. 2008. New ornithischian dinosaur material from the Lower Jurassic Lufeng Formation of China. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 247(1):117-128. [PDF]

Parham, James. F., and Randall B. Irmis. 2008. Caveats on the use of fossil calibrations for molecular dating. American Naturalist 171(1):132-136. [PDF]

Irmis, Randall B., Sterling J. Nesbitt, Kevin Padian, Nathan D. Smith, Alan H. Turner, Daniel Woody, and Alex Downs. 2007. A Late Triassic dinosauromorph assemblage from New Mexico and the rise of dinosaurs. Science 317:358-361.
[E-mail me for a copy] [Media Fact Sheet and Images] [UC Berkeley Press Release]

Irmis, Randall B. 2007. Axial skeleton ontogeny in the Parasuchia (Archosauria: Pseudosuchia) and its implications for ontogenetic determination in archosaurs. Journal of Vertebrate Paleontology 27(2):350-361. [E-mail me for a copy]

Nesbitt, Sterling J., Randall B. Irmis, and William G. Parker. 2007. A critical reevaluation of the Late Triassic dinosaur taxa of North America. Journal of Systematic Palaeontology 5(2):209-243. [PDF]

Irmis, Randall B., William G. Parker, Sterling J. Nesbitt, and Jun Liu. 2007. Early ornithischian dinosaurs: the Triassic record. Historical Biology 19(1):3-22. [PDF]

Irmis, Randall B., and David K. Elliott. 2006. Taphonomy of a Middle Pennsylvanian marine vertebrate assemblage and an actualistic model for marine abrasion of teeth. Palaios 21(5):466-479. [PDF]

Parker, William G., and Randall B. Irmis. 2006. A new species of the Late Triassic phytosaur Pseudopalatus (Archosauria: Pseudosuchia) from Petrified Forest National Park, Arizona. Museum of Northern Arizona Bulletin 62:126-143. [PDF]

Nesbitt, Sterling J., Randall B. Irmis, Spencer G. Lucas, and Adrian P. Hunt. 2005. A giant crocodylomorph from the Upper Triassic of New Mexico. Paläontologische Zeitschrift 79(4):471-478. [E-mail me for a copy]

Irmis, Randall B. 2005. A review of the vertebrate fauna of the Lower Jurassic Navajo Sandstone in Arizona. Mesa Southwest Museum Bulletin 11:55-71. [PDF]

Irmis, Randall B. 2005. The vertebrate fauna of the Upper Triassic Chinle Formation in northern Arizona. p. 63-88 in S.J. Nesbitt, W.G. Parker, and R.B. Irmis (eds.), Guidebook to the Triassic formations of the Colorado Plateau in northern Arizona: Geology, Paleontology, and History. Mesa Southwest Museum Bulletin 9. [PDF]

Parker, William G., and Randall B. Irmis. 2005. Advances in vertebrate paleontology based on new material from Petrified Forest National Park, Arizona. New Mexico Museum of Natural History & Science Bulletin 29:45-58. [PDF]

Irmis, Randall B., and William G. Parker. 2005. Unusual tetrapod teeth from the Upper Triassic Chinle Formation, Arizona. Canadian Journal of Earth Sciences 42(7):1339-1345. [PDF]

Fraser, Nicholas C., Randall B. Irmis, and David K. Elliott. 2005. A procolophonid (Parareptilia) from the Owl Rock Member, Chinle Formation of Utah, USA. Palaeontologia Electronica 8(1):13A, 7 p. [Full Text] [PDF]

Parker, William G., Randall B. Irmis, Sterling J. Nesbitt, Jeffrey W. Martz, and Lori S. Browne. 2005. The Late Triassic pseudosuchian Revueltosaurus callenderi and its implications for the diversity of early ornithischian dinosaurs. Proceedings of the Royal Society of London, Biological Sciences 272:963-969. [PDF]

Irmis, Randall B. 2004. First report of Megapnosaurus (Theropoda: Coelophysoidea) from China. PaleoBios 24(3):11-18. [PDF]

Elliott, David K., Randall B. Irmis, Michael C. Hansen, and Thomas J. Olson. 2004. Chondrichthyans from the Pennsylvanian (Desmoinesian) Naco Formation of central Arizona. Journal of Vertebrate Paleontology 24(2):268-280. [PDF]


Edited Volumes

Parker, William G., Sidney R. Ash, and Randall B. Irmis (editors). 2006. A century of research at Petrified Forest National Park 1906-2006: geology and paleontology. Museum of Northern Arizona Bulletin 62.

Nesbitt, Sterling J., William G. Parker, and Randall B. Irmis (editors). 2005. Guidebook to the Triassic formations of the Colorado Plateau in northern Arizona: geology, paleontology, and history. Mesa Southwest Museum Bulletin 9.


Dissertation

Irmis, Randall B. 2008. Perspectives on the origin and early diversification of dinosaurs. PhD dissertation, Department of Integrative Biology, University of California, Berkeley, 421 pp.


Book Reviews

Irmis, Randall B. 2007. Dinosaurs: The Most Complete, Up-To-Date Encyclopedia for Dinosaur Lovers of All Ages. Reports of the National Center for Science Education 27(5-6):51-52. [PDF] [Full Text]

Irmis, Randall B. 2007. The Sauropods: Evolution and Paleobiology. Journal of Vertebrate Paleontology 27(3):776. [PDF]

Irmis, Randall B. 2006. The Dinosauria, 2nd Edition. Journal of Vertebrate Paleontology 26(1):232. [PDF]

Irmis, Randall B. 2005. Dragons in the Dust: The Paleobiology of the Giant Monitor Lizard Megalania. Journal of Vertebrate Paleontology 25(2):479. [PDF]

Elliott, David K., Randall B. Irmis, and James H. Wittke. 2003. Cladistics: A Practical Primer on CD-ROM. Journal of Vertebrate Paleontology 23(4):984. [PDF]


Abstracts and Short Papers

Mundil, R., G. Gehrels, A.L. Deino, and R.B. Irmis. 2008. Zircon U-Pb analyses by TIMS and LA-ICPMS on the same material. Eos Transactions AGU 89(53 Supplement): abstract V13A-2108.

Irmis, R., and R. Mundil. 2008. New age constraints from the Chinle Formation revise global comparisons of Late Triassic vertebrate assemblages. Journal of Vertebrate Paleontology 28(Supplement to 3):95A.

Ezcurra, M.D., A. Lecuona, and R.B. Irmis. 2008. A review of the archosaur Trialestes romeri (Suchia, Crocodylomorpha) from the Upper Triassic Ischigualasto Formation of Argentina. p. 88 in J.O. Calvo, R.J. Valieri, J.D. Porfiri, and D. dos Santos (eds.), Actas de Resúmenes, III Congreso Latinoamericano de Paleontología de Vertebrados. Universidad Nacional del Comahue, Neuquén.

Mundil, R., and R. Irmis. 2008. New U-Pb age constraints for terrestrial sediments in the Late Triassic: implications for faunal evolution and correlations with marine environments. 33rd International Geological Congress Meeting Abstracts, Oslo. [Link]

Irmis, R., N. Pyenson, and J. Lipps. 2007. Formation of marine bonebeds: insights from the Middle Miocene Sharktooth Hill bonebed of California. Journal of Vertebrate Paleontology 27(Supplement to 3):94A.

Nesbitt, S., R. Irmis, W. Parker, and T. Rowe. 2007. Basal dinosauromorphs from North America and their implications for archosaur phylogeny. Journal of Vertebrate Paleontology 27(Supplement to 3):123A.

Parker, W., M. Brown, S. Nesbitt, M. Stocker, and R. Irmis. 2007. Revised osteology of Revueltosaurus callenderi (Archosauria: Pseudosuchia) based on new material from Petrified Forest National Park, Arizona. Journal of Vertebrate Paleontology 27(Supplement to 3):127A.

Stocker, M., W. Parker, and R. Irmis. 2007. Reexamination of an aetosaur from the Tecovas Formation (Dockum Group) of Texas: implications for aetosaur diversity, ontogeny, biochronology, and biostratigraphy. Journal of Vertebrate Paleontology 27(Supplement to 3):153A.

Pyenson, Nicholas D., Randall B. Irmis, and Jere H. Lipps. 2007. Formation and taphonomy of the Sharktooth Hill bonebed, a unique accumulation from the mid-Miocene of California. Geological Society of America Abstracts with Programs 39(6):398. [Link]

Irmis, Randall B. 2007. A reappraisal of the phylogeny of early dinosaurs. The Palaeontological Association Newsletter 65:92-94. [PDF]

Parker, W.G., S.J. Nesbitt, R.B. Irmis, M.R. Stocker, and M.A. Brown. 2007. Two significant new Late Triassic fossil localities from Petrified Forest National Park, Arizona. Proceedings of the Arizona-Nevada Academy of Science 42: 26.

Irmis, R.B., S.J. Nesbitt, and A. Downs. 2006. A new Upper Triassic vertebrate quarry from the Chinle Formation of northern New Mexico with a unique and exceptionally diverse tetrapod fauna. Journal of Vertebrate Paleontology 26(Supplement to 3): 80A.

Parker, W.G., R.B. Irmis, and S.J. Nesbitt. 2006. Review of the Late Triassic dinosaur record from Petrified Forest National Park, Arizona. Museum of Northern Arizona Bulletin 62:160-161. [Short Paper] [PDF]

Irmis, R.B., W.G. Parker, and S.J. Nesbitt. 2005. Critical review of the Late Triassic dinosaur record, part 2: Ornithischia. Journal of Vertebrate Paleontology 25(Supplement to 3): 73A.

Nesbitt, S.J., R.B. Irmis, and W.G. Parker. 2005. Critical review of the Late Triassic dinosaur record, part 3: saurischians of North America. Journal of Vertebrate Paleontology 25(Supplement to 3): 96A.

Parker, W.G., S.J. Nesbitt, and R.B. Irmis. 2005. Critical review of the Late Triassic dinosaur record, part 1: Revueltosaurus callenderi. Journal of Vertebrate Paleontology 25(Supplement to 3): 99A.

Irmis, Randall B., Sterling J. Nesbitt, and William G. Parker. 2005. A critical review of the Triassic North American dinosaur record. p. 139 in A.W.A Kellner, D.D.R. Henriques, and T. Rodrigues (eds.), II Congresso Latino-Americano de Paleontologia de Vertebrados, Boletim de Resumos. Museu Nacional, Rio de Janeiro.

Nesbitt, Sterling J., Randall B. Irmis, and William G. Parker. 2005. Character support for Dinosauria: new insights from crocodile-line archosaurs and Late Triassic North American "theropods." p. 190-191 in A.W.A Kellner, D.D.R. Henriques, and T. Rodrigues (eds.), II Congresso Latino-Americano de Paleontologia de Vertebrados, Boletim de Resumos. Museu Nacional, Rio de Janeiro.

Irmis, Randall. 2004. Axial skeleton ontogeny of the Phytosauria (Archosauria: Pseudosuchia) and its implications for assessing maturity in archosaurs. Journal of Vertebrate Paleontology 24(Supplement to 3):74A.

Parker, William, and Randall Irmis. 2004. A revision of the phytosaur species Pseudopalatus mccauleyi (Archosauria: Pseudosuchia), based on two new specimens from Petrified Forest National Park, AZ. Journal of Vertebrate Paleontology 24(Supplement to 3):100A.

Stocker, Michelle, William Parker, Randall Irmis, and Jeff Shuman. 2004. New discoveries from the Upper Triassic Chinle Formation as the result of the ongoing paleontological inventory of Petrified Forest National Park, Arizona. Journal of Vertebrate Paleontology 24(Supplement to 3):118A.

Riggs, N.R., C.E. Bonamici, R.B. Tusso, C.R. Sine, G.B. Rigg, S.H. Kulish, R.B. Irmis, M.A. Hartke, K.W. Hadder, and W.A. Duffield. 2004. Evolution of a complex cinder cone, Red Mountain, Arizona. Geological Society of America Abstracts with Programs 36(5):431.

Irmis, Randall, and David Elliott. 2003. Taphonomy of marine vertebrates from the Naco Formation (Middle Pennsylvanian), central Arizona. Journal of Vertebrate Paleontology 23(Supplement to 3): 65A.

Irmis, Randall B., David K. Elliott, and Rodney Feldmann. 2003. Phylogenetic analysis of Cancer (Crustacea: Decapoda): A case study in species-rich taxa. Fourth Biennial Conference of the Systematics Association, Programme and Abstracts: 28.

Parker, W., R. Irmis, and D. Woody. 2003. Late Triassic fauna of the newly revised Sonsela Member, Chinle Formation, Petrified Forest National Park, Arizona.7th Biennial Conference of Research on the Colorado Plateau, Program and Abstracts.

Parker, William G., Daniel T. Woody, Randall B. Irmis, Sue Clements, J. Trent Hall, and Karen Beppler-Dorn. 2003. Preliminary results of an ongoing paleontological inventory of Petrified Forest National Park, Arizona. Southwest Paleontological Symposium 2003 Guide to Presentations.

Irmis, Randall. 2002. The first reported ornithischian dinosaur postcrania from the Early Jurassic Lufeng Formation, China. Journal of Vertebrate Paleontology 22(Supplement to 3): 70A.



Invited Presentations
• Unversity of California-Davis Geology Department "Brown Bag" Seminar Series (2008)
• St. George Chapter of Utah Friends of Paleontology (2007)
• Petrified Forest National Park Lecture Series (2007)
• Sonoma State University Age of Dinosaurs class (2006)


Grants and Fellowships
• National Science Foundation-Berkeley Travel Grant (2008) - $750
• Jurassic Foundation Research Grant (2008) - $1,900
• University of California Museum of Paleontology Graduate Student Research Award (2007) - $1,254
• University of California Department of Integrative Biology Robert and Nancy Beim Graduate Field Research Fund (2007) - $3,000
• Samuel & Doris Welles Research Fund (2007) - $14,000
       - Co-Principal Investigator with K. Padian
• National Science Foundation-Berkeley Travel Grant (2007) - $750
• University of California Department of Integrative Biology Graduate Research and Travel Fund (2007) - $300
• Society of Vertebrate Paleontology Bryan Patterson Memorial Grant (2006) - $1,000
• Theodore Roosevelt Memorial Fund (2006) - $2,000
• National Geographic Society Research & Exploration Grant (2006) - $13,066
       - Co-Investigator with K. Padian, S.J. Nesbitt, A. Downs, N.D. Smith, and A.H. Turner
• National Science Foundation Graduate Research Fellowship (2006)
• University of California Department of Integrative Biology Summer Research Block Grant (2006) - $4,300
• Palaeontological Association Sylvester-Bradley Award (2006) - £1,000
• Jurassic Foundation Research Grant (2005) - $3,000
• Samuel & Doris Welles Research Fund (2005) - $2,200
• Samuel & Doris Welles Research Fund (2003) - $350
• Northern Arizona University Student Travel Award (2003) - $100
• Northern Arizona University Hooper Undergraduate Research Award (2003) - $500
• Paleontological Society Stephen J. Gould Student Grant-in-Aid (2003) - $500
• Systematics Association Biennial Meeting Student Bursary Award (2003) - $400
• Northern Arizona University Student Travel Award (2002) - $150
• Samuel & Doris Welles Research Fund (2002) - $300
• Northern Arizona University Department of Geology Travel Grant (2002) - $200


Academic Awards and Honors
• University of California George D. Louderback Award (2008) - $1000
• Northern Arizona University Department of Geology Outstanding Senior Award
• Northern Arizona University Department of Geology Vesto Melvin Slipher Scholarship (2003) - $406
• Northern Arizona University Parents Association Scholarship (2002) - $1000
• Northern Arizona University Wesley Clark Memorial Scholarship (2001) - $500


Professional Memberships
Society of Vertebrate Paleontology
Paleontological Society
Palaeontological Association
Geological Society of America
Society of Systematic Biologists


Professional Service
• 2006-Current - Member, Samuel P. and Doris Welles Research Fund Award Committee
• 2005-Current - Associate Editor, PaleoBios
• 2003-2004 - Member, Student Advisory Committee to Dean of Natural Sciences & Engineering, Northern Arizona University

• Reviewer - Acta Palaeontologica Polonica, Fossil Turtle Research (2), Historical Biology (2), Journal of Vertebrate Paleontology (5), Lethaia, Mesa Southwest Museum Bulletin, Neues Jahrbuch für Geologie und Paläontologie, Palaeontologia Africana, Palaeontologia Polonica, Revista Brasileira de Paleontologia, University of California Press, Zoological Journal of the Linnean Society, and Zootaxa

• Organized UC-Berkeley Geometric Morphometrics Shortcourse, July 2006


Field Experience
• 2008 (May and June) - Upper Triassic Chinle Formation, Ghost Ranch, New Mexico
• 2008 (January) - Triassic Adigrat Sandstone and Upper Jurassic Mugher Mudstone, Ethiopia
• 2007 (May and June) - Upper Triassic Chinle Formation, Ghost Ranch, New Mexico
• 2007 (April) - Miocene (Barstovian) Round Mountain Silt, Sharktooth Hill, California
• 2007 (March) - Late Pleistocene vertebrates, Terapa, Sonora, Mexico
• 2006 (September) - Miocene (Barstovian) Round Mountain Silt, Sharktooth Hill, California
• 2006 (June and July) - Upper Triassic Chinle Formation, Ghost Ranch, New Mexico
• 2005 (August) - Late Pleistocene mammoth skeleton, San Jose, California
• 2005 (July) - Miocene (Barstovian) Round Mountain Silt, Sharktooth Hill, California
• 2005 (June) - Lower Jurassic Moenave & Kayenta Formations, Wards Terrace, Arizona
• 2005 (March) - Miocene (Barstovian) Round Mountain Silt, Sharktooth Hill, California
• 2004 (May through August) - Upper Triassic Chinle Formation, Petrified Forest National Park, Arizona
• 2004 (March) - Late Pleistocene vertebrates, Terapa, Sonora, Mexico
• 2003 (May through August) - Upper Triassic Chinle Formation, Petrified Forest National Park, Arizona
• 2003 (June) - Upper Triassic Chinle Formation, Grand Staircase-Escalante National Monument, Utah
• 2003 (June) - Upper Triassic Chinle Formation, Abajo Mountains, Utah
• 2002 (November) - Upper Cretaceous Kaiparowits Formation, Grand Staircase-Escalante National Monument, Utah
• 2002 (May through August) - Upper Triassic Chinle Formation, Petrified Forest National Park, Arizona
• 2001-2004 - Middle Pennsylvanian Naco Formation, central Arizona
• 1994 (June) - Upper Jurassic Morrison Formation, vicinity of Sundance, Wyoming


Fossil Preparation Experience
• mechanical (airscribe, pinvise, etc) and acid preparation of a wide variety of vertebrate fossils in a variety of matrices (mudstone, sandstone, carbonate concretions, limestone), particularly from the Upper Triassic Chinle Formation of Arizona and New Mexico
• one and two piece molding using silicone and silputty
• casting of small and moderate size specimens using epoxy and plaster