Mosasaur Jaw in Matrix

Mosasaur Jaw in MatrixA well preserved Mosasaur jaw with a tooth still attached, embedded in its original matrix. It has been expertly stabilized for preservation. No repair or restoration. Mosasaurs were the rulers of the Late Cretaceous seas, and they earned that title completely. While dinosaurs dominated the land and pterosaurs owned the skies, mosasaurs had the oceans locked down. They were not dinosaurs themselves they were massive, fully marine lizards, more closely

Vaca Muerta is among the rarest meteorite types on Earth

Compared to other sharks:

approximately 30 million years old

Triceratops had a more compact but very solid frill (no huge openings) and particularly robust brow horns

Specifically

Maiasaura was a large herbivorous hadrosaur

and of a predator large enough to command respect that most people have simply never heard of

It was a specialist in a world full of generalists

once roamed across this region

Collectors who have built their eye on Megalodon teeth and then encounter a high-quality angustidens specimen often find themselves surprised at how much a good one costs — and quickly understand why

fossil assemblages from the Love Bone Bed show balanced male/female mortality ratios

Mammoth and mastodon teeth and bone