Lonely northern cliffs from which scientists have pulled the bones of Alaska dinosaurs also hold the fossilized remains of birds. Lauren Keller is studying the tiny specks of teeth and bones of birds that died more than 70 million years ago in what is now northern Alaska. Keller is a graduate student working with the […]
First record of theropods — dinosaurs that include birds and their closest non-avian dinosaur relatives A study led by scientists at The University of Texas at Austin is providing a glimpse into dinosaur and bird diversity in Patagonia during the Late Cretaceous, just before the non-avian dinosaurs went extinct. The fossils represent the first record of theropods […]
Precipitation more than temperature influenced the distribution of herbivorous dinosaurs in what is now Alaska, according to new research published this month. The finding, published April 2 in the journal Geosciences, discusses the distribution of hadrosaurids and ceratopsids — the megaherbivores of the Late Cretaceous Period, 100.5 million to 66 million years ago. The work […]
The bizarre features of this mammal have scientists perplexed as to how it could have evolved; “it bends and even breaks a lot of rules” New research published today in the Journal of Vertebrate Paleontology describes a bizarre 66 million-year-old mammal that provides profound new insights into the evolutionary history of mammals from the southern supercontinent Gondwana […]