Ceratosaurus! The “Horn Lizard” named by Marsh in 1884 from the Late Jurassic (~150 mya) of western North America is best known for its awesome nose horn. The nose horn was made from a fusion of parts of the left and right nasal bone, it wasn’t its own separate horn, but rather part of the skull. It is quite rugose and likely was covered in some kind of keratinous sheath. Was the nose horn brightly colored? Could it be flushed with blood to change its colors like a bipedal, rampaging Rudolph the

Ceratosaurus! The “Horn Lizard” named by Marsh in 1884 from the Late Jurassic (150 mya) of western North America is best known for its awesome nose horn. The nose horn was made from a fusion of parts of the left and right nasal bone, it wasn’t its own separate horn. The “eye ridge” horns are made from the top portion of the #lacrimal bone. In #humans our tears come from the lacrimal gland in the lacrimal bone, one of the smallest and most fragile bones in the human body, and one that would be wo