8 Dinosaurs Scientists Still Can’t Classify
The deep past of Earth is strewn with tantalizing fossils — skeleton fragments, bones, vertebrae, bits of hips and limbs — that defy tidy categorization. Over the last century, paleontologists have built tree after tree of dinosaur interrelationships (phylogenies), yet some taxa stubbornly resist placement. These “enigmatic dinosaurs” fall into the category incertae sedis (of ...
