A newfound fossil of a jawless fish is the oldest known vertebrate cranium preserved in 3D. The 455 million-year-old find could illuminate how vertebrate heads evolved.

Queensland Museum scientists have described a 400-million-year-old fossil, which is possibly the smallest vertebrate fossil animal known from Queensland—Palaeospondylus australis. Details about ...

Scientists are still piecing together how modern vertebrates’ skulls evolved from these ancient fish ancestors, which were the first animals with backbones. Now, recent analysis of a spectacular ...

A newfound fossil of a jawless fish is the oldest known vertebrate cranium preserved in 3D. The 455 million-year-old find could illuminate how vertebrate heads evolved.