Fossil Friday #336: Shark Egg Case from Chowder Flats #fossils #paleontology #MazonCreek #FossilFriday #carboniferous #pennsylvanian #morris #shark #sharkeggcase

Here's a beautiful Palaeoxyris prendeli from Chowder…

https://esconi.org/2026/09/fossil-friday-336-shark-egg-case-from-chowder-flats/