J561 - Tyrannosaur Dinosaur Tooth - Nanotyrannus sp - Late Cretaceous - Lance Creek Fm Altiocculus harrisi McCollum 2000

McCollum 2000

• Eocene of Algeria

00 143972436146 N18-Rare 1

The eyes facets of this specimen are amazingly well detailed

with one or two large spines at the base

J561 - Tyrannosaur Dinosaur Tooth - Nanotyrannus sp - Late Cretaceous - Lance Creek Fm Altiocculus harrisi McCollum 2000Nanotyrannus lancensis is a small, fast, agile tyrannosaur from the Late Cretaceous Hell Creek Formation (originally part of the Lance Formation), known for being small and distinctly different from T. rex, with recent studies confirming it's a separate species, not a juvenile T. rex, based on unique features like more teeth, larger hands, and distinct bone structures. Meaning "dwarf tyrant," it was a capable predator of smaller prey, coexisting with