An article published in the journal “Current Biology” describes a research on a dinosaur with characteristics similar to birds called Limusaurus inextricabilis. A team of researchers studied 19 specimens ranging from babies to adults discovered in today’s Xinjiang province in China to analyze how they developed teeth and then lost them over time.
An article published in the “Canadian Journal of Earth Sciences” describes a research on Ceratopsids, the so called horned dinosaurs that lived in the Late Cretaceous in today’s western areas of North America. A group of researchers led by Dr. Michael Ryan of the Cleveland Museum of Natural History, included some species into two new groups, or clades in technical jargon, called Nasutoceratopsini and Centrosaurini (Centrosaurinae).
An article published in the journal “Current Biology” describes the study of the tail of a small feathered dinosaur dating back to about 99 million years ago preserved in amber. A team of researchers led by paleontologist Lida Xing of the China University of Geosciences in Beijing examined the fossil, the first preserved in this manner directly associated to a dinosaur.
An article published in the magazine “Geology” describes the discovery of fossils of bacteria that date back to about 2.5 billion years ago. Those are exceptionally large sulfur-oxidizing bacteria compared to modern ones, of spherical shape with structures much larger than those of modern bacteria but similar to those of microorganisms that live today in sulfur-rich ocean depths. Above all, those are bacteria that lived before the Great Oxygenation Event.
An article published in the journal “Proceedings of the National Academy of Sciences” describes a research on a bird that lived about 130 million years ago called Eoconfuciusornis zhengi. A team of researchers from North Carolina State University, Chinese Academy of Sciences and Linyi University have found in this bird’s known fossil specimen traces of keratin and melanosomes and managed to prove that these are traces of its feathers.