Life Before the Dinosaurs

Lyrarapax is a new anomalocarid described on July 16, 2014. It’s the first known fossil of an anomalocarid that preserved the brain. The mu...

Spartobranchus tenuis was an endobenthic (burrowing) enteropneust (or acorn worm) from the Burgess Shale. It is the earliest known enteropne...

I haven't added to the blog in a long time and I've decided that it's finished for now. I think I did the best I could to write ...

A huge thank you to everybody following Life Before the Dinosaurs and wondering why Art hasn't posted in a while. You guys are the ...

Ctenoimbricata (ten-oh-im-bri-kah-tuh) was an early echinoderm that looked a lot like a trilobite. It lived in the Cambrian, and the only tw...

Opabinia was a Cambrian invertebrate probably related to today's velvet worms. It was also related to Anomalocaris , which probably some...