Including autapomorphies is important for paleontological tip-dating with clocklike data, but not with non-clock data by Nicholas J. Matzke, Randall B. Irmis

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A new southern Laramidian ankylosaurid, Akainacephalus johnsoni gen. et sp. nov., from the upper Campanian Kaiparowits Formation of southern Utah, USA by Jelle P. Wiersma, Randall B. Irmis

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Paleoenvironmental and Biotic Changes in the Late Triassic of Argentina: Testing Hypotheses of Abiotic Forcing at the Basin Scale by Adriana C. Mancuso, Randall B. Irmis, Randall B. Irmis, Tomás E. Pedernera, Leandro C. Gaetano, Leandro C. Gaetano, Cecilia A. Benavente, Cecilia A. Benavente, Benjamin T. Breeden III, Benjamin T. Breeden III

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Integrating gross morphology and bone histology to assess skeletal maturity in early dinosauromorphs: new insights from Dromomeron (Archosauria: Dinosauromorpha) by Christopher T. Griffin, Lauren S. Bano, Alan H. Turner, Nathan D. Smith, Randall B. Irmis, Sterling J. Nesbitt

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Tyrant dinosaur evolution tracks the rise and fall of Late Cretaceous oceans. by Mark A Loewen, Randall B Irmis, Joseph J W Sertich, Philip J Currie, Scott D Sampson

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A new rauisuchid (Archosauria, Pseudosuchia) from the Upper Triassic (Norian) of New Mexico increases the diversity and temporal range of the clade by Emily J. Lessner, Michelle R. Stocker, Nathan D. Smith, Alan H. Turner, Randall B. Irmis, Sterling J. Nesbitt

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