Furry, spiky mammal scampered among dinosaurs
Early Cretaceous fur ball with spikes discovered in Spain
![illustration of Spinolestes xenarthrosus](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/10/101615_ht_fuzzymammal_free.jpg?fit=860%2C460&ssl=1)
MESOZOIC MAMMAL Spinolestes xenarthrosus lived 125 million years ago, weighed about as much as a possum and probably looked like small mammals do today.
Oscar Sanisidro