Spinolestes xenarthrosus: Cretaceous Fossil Reveals Early Evolution of Hair

An international team of paleontologists has discovered a 125-million-year-old ancient mammal fossil, which has been named a new species, in Spain. According to the team, the discovery pushes back the earliest record of preserved mammalian hair structures and inner organs by more than 60 million years. The specimen, named Spinolestes xenarthrosus, was fossilized with remarkably [...] —> Read More