Beetle-like borings in 70-million-year-old titanosaur fossils reshape Lo Hueco fossil story

Traces or perforations caused by living organisms after an animal's death can be found on various dinosaur bone remains. These perforations, known as bioerosion structures, provide information that helps us understand relationships between living organisms in the past, reconstruct palaeoecosystems and improve our understanding of the fossilization process. Now, a study published in the journal Earth-Science Reviews has identified this type of perforation in bones and, for the first time, also in pieces of dermal armor (osteoderms) from titanosaurs at the Lo Hueco site (Cuenca), dating to the Late Cretaceous.