Image : Fossil whale rib with predation marks (likely shark).
This one of the things that makes fossil-hunting interesting and fun. Here is the remains of a Megalodon's meal that I found on our most recent fossil-hunting expedition to Bone Valley.
Exact species unknown.
Miocene (5 to 23 million years)
Sarasota County, Florida
Bone Valley Formation
This is the proximal end of a thoracic rib from an unknown species of Cetacean. Of note, one end has clear predation marks in the form a series of evenly-spaced, parallel gouges into the surface of the bone. This was likely caused by a shark and possibly a small Megalodon.
Note, the photo of the guy holding an intact rib is shown for comparison. The portion circled in black is the part of the rib I found. Obviously the man in the photo is not me, because I am far sexier than that poor fellow. It's not his fault. LOL. (Image credit : Wikimedia Commons)
This specimen is available for purchase at - https://galactic-stone.com/fossil-whale-rib-with-predation-marks-miocene-bone-valley/
Thanks for looking and Happy Huntings (Fossils)!
MikeG (Curator of the Galactic Stone & Ironworks Collection)
(Image credits : With the exception of the first photo which is credited, the other photos are by me.)