An article published in the journal “Nature” describes a research on Haplophrentis carinatus and in general of the group of hyoliths, animals that lived during the Cambrian period, starting from about 530 million years ago. A team of researchers from the University of Toronto found evidence that these animals are related to the brachiopods (phylum Brachiopoda), marine invertebrates that existed at the time of which some species still exist today.
Blogs about paleontology
An article published in the journal “Proceedings of the National Academy of Sciences” describes a research on the incubation time of dinosaurs eggs. A team of researchers led by Gregory Erickson of Florida State University analyzed rare fossils of embryos of two species of dinosaurs and concluded that the eggs of these ancient animals hatched after a period of three and six months, depending on the species.
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.