Part of a feather preserved in amber from the Santa Maria coal mine Sergio Alvarez-Parra
An impressive trove of fossil-filled amber has come to light at a 110-million-year-old site that has already yieldeddinosaur bones in Ari単o, north-eastern Spain. The amber contains an unusually diverse range of insect, plant and vertebrate fossils and provides a rare insight into the life that inhabited what would have been a coastal freshwater swamp during the Cretaceous period.
Having two different yet complementary windows of preservation from a given fossil [site] the bonebed and the amber at Ari単o is exceptional, says
