Monographs and descriptions

I am involved in multiple descriptions of new and poorly known taxa. Current projects include:


1) Description of the basal archosaur Poposaurus gracilis (YPM 57100) in collaboration with Randall Irmis (University of Utah), Sterling Nesbitt (Virginia Tech), and Bob Cieri (Graduate student, Univ of Utah)


2) Description of a new species of giant oviraptor from the Late Cretaceous of North America in collaboration with Matt Lamanna (Carnegie Museum), Hans Sues (Smithsonian Institution) and Tyler Lyson (Smithsonian Institution)



The appendicular skeleton of P. gracilis demonstrates an unusual level of bilateral asymmetry. Percent directional asymmetry has been calculated from caliper based morphometric measurements of specific hindlimb elements. Pronounced directional asymmetry was found in virtually all measures of length, width, circumference and robusticity in all major long bones as well as the calcaneum and astragalus


This project is in collaboration with Colin Shaw (Cambridge University) and Meg Shirley (Graduate student, University College London) and is currently in preparation for publication


© 2021 by Emma R. Schachner. All rights reserved.

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