Thescelosaurines were a group of small to medium-sized, herbivorous dinosaurs that inhabited North America during the Late Cretaceous. The recently discovered thescelosaurine species Fona Herzogae shows that these dinosaurs spent at least part of their time in underground burrows. Fona HerzogaePhoto: Jorge Gonzalez. Fona Herzogae lived about 99 million years ago (Cretaceous Period) in the … Read more
Paleontologists in Argentina have identified a new genus and species of unenlagiine dinosaur. Called Diuqin lechiguanaeit fills a significant gap in the fossil record of these theropod dinosaurs. Life reconstruction of Diuqin lechiguanae. Image credit: Porfiri et al., doi: 10.1186/s12862-024-02247-w. Diuqin lechiguanae roamed our planet during the Santonian era of the Cretaceous, between 86 and … Read more
Promethium is extremely rare: only about 0.5 kg occurs naturally in the Earth’s crust at any time. Conceptual art shows the rare earth element promethium in a vial surrounded by an organic ligand. Image credits: Jacqueline DeMink / Thomas Dyke / ORNL. Promethium, discovered in 1945 at Clinton Laboratories, is a lanthanide element with the … Read more