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Browsing by Author "Irmis, Randall B."

Browsing by Author "Irmis, Randall B."

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  • Comment on "Climate, Critters, and Cetaceans: Cenozoic Drivers of the Evolution of Modern Whales" 
    Pyenson, Nicholas D.; Irmis, Randall B.; Lipps, Jere H. (2010)
  • Early Crocodylomorpha 
    Irmis, Randall B.; Nesbitt, Sterling J.; Sues, Hans-Dieter (2013)
    Non-crocodyliform crocodylomorphs, often called sphenosuchians , were the earliest-diverging lineages of Crocodylomorpha, and document the stepwise acquisition of many of the features that characterize extant crocodylians. ...
  • The first confirmed sauropod dinosaur from Ethiopia discovered in the Upper Jurassic Mugher Mudstone 
    Goodwin, Mark B.; Irmis, Randall B.; Wilson, Gregory P.; DeMar, David G., Jr.; Melstrom, Keegan; Rasmussen, Cornelia; Atnafu, Balemwal; Alemu, Tadesse; Alemayehu, Million; Chernet, Samuel G. (2019)
    Ethiopia preserves extensive Mesozoic non-marine sedimentary sequences, but dinosaur fossils are exceptionally rare. The record is limited to a handful of theropod and ornithischian teeth from the Upper Jurassic Mugher ...
  • The Fossil Calibration Database, A New Resource for Divergence Dating 
    Ksepka, Daniel T.; Parham, James F.; Allman, James F.; Benton, Michael J.; Carrano, Matthew T.; Cranston, Karen A.; Donoghue, Philip C. J.; Head, Jason J.; Hermsen, Elizabeth J.; Irmis, Randall B.; Joyce, Walter G.; Kohli, Manpreet; Lamm, Kristin S.; Leehr, Dan; Patané, José S. L.; Polly, P. David; Phillips, Matthew J.; Smith, N. Adam; Smith, Nathan D.; van Tuinen, Marcel; Ware, Jessica L.; Warnock, Rachel C. M. (2015)
    Fossils provide the principal basis for temporal calibrations, which are critical to the accuracy of divergence dating analyses. Translating fossil data into minimum and maximum bounds for calibrations is the most important, ...
  • Grouping behavior in a Triassic marine apex predator 
    Kelley, Neil P.; Irmis, Randall B.; dePolo, Paige E.; Noble, Paula J.; Montague-Judd, Danielle; Little, Holly; Blundell, Jon; Rasmussen, Cornelia; Percival, Lawrence M. E.; Mather, Tamsin A.; Pyenson, Nicholas D. (2022)
  • A new archosauriform reptile with distinctive teeth from the Middle Triassic (Ladinian) of Germany 
    Sues, Hans-Dieter; Schoch, Rainer R.; Sobral, Gabriela; Irmis, Randall B. (2020)
    Skeletal remains of a small reptile with a distinctive dentition from the Lower Keuper (Erfurt Formation; Middle Triassic, Ladinian) of the Schumann quarry near Eschenau, in the municipality of Vellberg in Baden-Wurttemberg, ...

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