The Grand Staircase-Escalante National Monument is the location of one of the best-known terrestrial records for the late Cretaceous. Prior fieldwork confirmed the richness of the area, but a major effort begun in the new century has documented over 2,000 new vertebrate fossil sites, provided new radiometric dates, and identified five new genera of ceratopsids, two new species of hadrosaur, a probable new genus of hypsilophodontid, new pachycephalosaurs and ankylosaurs, several kinds of theropods (including a new genus of oviraptor and a new tyrannosaur), plus the most complete specimen of a Late Cretaceous therizinosaur ever collected from North America, and much more. The research documented in this book is rewriting our understanding of Late Cretaceous paleobiogeography and dinosaur phyletics. At the Top of the Grand Staircase: The Late Cretaceous of Southern Utah is a major stepping stone toward a total synthesis of the ecology and evolution of the Late Cretaceous ecosystems of western North America.

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Alan L. Titus is Monument Paleontologist at Grand Staircase–Escalante National Monument in Utah and Adjunct Curator, Natural History Museum of Utah.

Mark A. Loewen is Adjunct Assistant Professor, Department of Geology and Geophysics, University of Utah and Research Associate, Natural History Museum of Utah.

...Rather than marking an end point, the volume is a foundational manuscript for ongoing research that will be indispensable to anyone researching the monument's prehistoric life. At the Top of the Grand Staircase is an essential volume for explorers who are continuing to search through what's left of Cretaceous Utah.

National Geographic Phenomena

This volume . . . provides a comprehensive foundation for future research ventures on Campanian-age strata worldwide. Editors Alan Titus and Mark Loewen have completed the excellent service of compiling a suite of various research topics—ranging from stratigraphic reviews and correlations to taphonomic studies—on this key scientific region.

Priscum

[T]his work will be an important resource for library collections. It will be valuable to paleontologists and geologists who are working throughout the US and the world, not just this specific region. . . . Highly recommended.

Choice