(ancient Greek for ‘impending doom’).
Named By: Lindsay E. Zanno, Ryan T. Tucker, Aurore Canoville, Haviv M. Avrahami, Terry A. Gates & Peter J. Makovicky - 2019.
Classification: Chordata, Reptilia, Dinosauria, Saurischia, Theropoda, Tyrannosauroidea.
Species: M. intrepidus (type).
Size: Hind limb length estimated at 1.2 meters. Total body size unknown.
Known locations: USA, Utah - Cedar Mountain Formation.
Time period: Cenomanian of the Cretaceous.
Fossil representation: Partial hind leg bones. Teeth. Holotype fossils are of a subadult.
is a genus of primitive tyrannosauroid
that lived in North America
during the earlier stages of the Late cretaceous. The holotype
fossils of Moros date from the Cenomanian of the
that the discovery of these has turned back the clock on the first
known appearance of a definitive tyrannosaur in North America by a
further fifteen million years. With perhaps a grim sense of humour
the describers named this new genus Moros which is
ancient Greek for
impending doom’. A fitting name when you consider that later
tyrannosaurs would become the apex predators of North America.
Unfortunately all we known at the time of writing about Moros are some partial leg and foot bones and some teeth. The leg length of Moros has been estimated by the genus describers to be about one hundred and twenty centimetres long, but these fossil bones are also of a subadult individual. Fully grown adults may have been slightly bigger, but without further fossil discoveries we can only make a best guess at the remainder of the body proportions.
- Diminutive fleet-footed tyrannosauroid narrows the 70-million-year gap in the North American fossil record. - Communications Biology. 2 (1): 64 - Lindsay E. Zanno, Ryan T. Tucker, Aurore Canoville, Haviv M. Avrahami, Terry A. Gates & Peter J. Makovicky - 2019.