Dino Day: Bistahieversor sealeyi

Adapted from page 44:

The Bistahieversor sealeyi lived during the late Upper Cretaceous (Campanian, ca. 78–72.1 Ma) in western Laurasia (present-day New Mexico, USA). It was a sturdy carnivore with an appearance similar to tyrannosaurids, leading it to be known previously as Aublysodon cf. mirandus or Daspletosaurus. At the end of the Cretaceous in western North America (paleocontinent Laramidia), tyrannosauroid derivatives were replaced by tyrannosaurids. In the east (Appalachia), where there was no exchange of fauna with Asia.

From the late Lower Cretaceous (Valanginian, ca. 139.8–132.9 Ma) area of eastern Laurasia (present-day Mongolia). The incomplete remains of a maxillary tooth and a tibia and a fibula that are about 1 m long are attributed to Prodeinodon mongoliensis, although these remains can not be compared with this species.

Dinosaur Facts and Figures: The Theropods and Other Dinosauriformes
By Rubén Molina-Pérez and Asier Larramendi
Illustrations byAndrey Atuchin and Sante Mazzei

The theropod dinosaurs ruled the planet for millions of years, with species ranging from the mighty Tyrannosaurus rex to feathered raptors no bigger than turkeys. Dinosaur Facts and Figures is a stunningly illustrated book of records for these marvelous creatures—such as the biggest, the smallest, and the fastest theropods, as well as the ones with the most powerful bite.

This one-of-a-kind compendium features more than 3,000 records, covers some 750 theropod species, and includes a wealth of illustrations ranging from diagrams and technical drawings to full-color reconstructions of specimens. The book is divided into sections that put numerous amazing theropod facts at your fingertips. “Comparing Species” is organized by taxonomic group and gives comparisons of the size of species, how long ago they lived, and when they were discovered. “Mesozoic Calendar” includes spreads showing the positions of the continents at different geological time periods and reconstructions of creatures from each period. “Prehistoric Puzzle” compares bones, teeth, and feathers while “Theropod Life” uses vivid, user-friendly graphics to answer questions such as which dinosaur was the smartest and which had the most powerful bite. Other sections chart theropod distribution on the contemporary world map, provide comprehensive illustrated listings of footprints, compile the physical specifications of all known theropods and Mesozoic birds, and much more.

  • The essential illustrated record book for anyone interested in dinosaurs
  • Features thousands of records on everything from the smartest and fastest theropods to the largest theropod eggs
  • Includes more than 2,000 diagrams and drawings and more than 300 digital reconstructions
  • Covers more than 750 theropod species, including Mesozoic birds and other dinosauromorphs
  • Provides detailed listings of footprints, biometric specifications, and scholarly and popular references
This post is part of a series, explore additional posts here<< Dino Day: Bonapartenykus ultimusDino Day: Giganotosaurus carolinii >>