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5.9" Partial, Disarticulated Mosasaur Skull - Goulmima, Morocco
This is a beautiful 5.9" fossil Plate containing Mosasaur skull bones from Goulmima, Morocco. It contains a portion of both Maxilla (upper jaw), the right Pterygoid bone with eight teeth, a cervical (neck) vertebrae and a phalange, most likely from the front right paddle. The Pterygoid bone forms the back of the roof of the mouth just above the throat and in some reptiles contains a second set of teeth that aid in swallowing prey. A rough calculation suggests that when the skull was intact it was approximately 8 inches (20 cm) long.
This amazing plate also contains the Dentary (lower jaw) of a Pycnodus, an extinct bony fish with teeth designed for crushing hard prey like shellfish. Under magnification other Pycnodus bones can be identified, most are vertebrae. The bone in this plate is in excellent condition. The top maxilla has a a repair to the base end. This repair is an incorrect bone placement and does not reflect the correct shape of the maxilla.
Comes with a display stand.
This amazing plate also contains the Dentary (lower jaw) of a Pycnodus, an extinct bony fish with teeth designed for crushing hard prey like shellfish. Under magnification other Pycnodus bones can be identified, most are vertebrae. The bone in this plate is in excellent condition. The top maxilla has a a repair to the base end. This repair is an incorrect bone placement and does not reflect the correct shape of the maxilla.
Comes with a display stand.
About Mosasaurs
Mosasaurs were large, carnivorous marine reptiles that lived during the Late Cretaceous Period, approximately 90 to 66 million years ago. Though often mistaken for dinosaurs, they were actually more closely related to modern monitor lizards, including the Komodo dragon. Over time, their ancestors transitioned from land to sea, evolving paddle-like flippers, streamlined bodies, and powerful tails that made them highly efficient swimmers. Some species developed crescent-shaped, shark-like tail fins that allowed for strong, sustained propulsion through open water. Sizes varied widely, with many species measuring 20 to 30 feet long, while the largest—such as Mosasaurus hoffmannii—may have exceeded 50 feet in length.
As apex predators, mosasaurs occupied the top of the marine food chain. Their long jaws were lined with sharp, conical teeth ideal for gripping slippery prey, and fossil evidence shows they fed on fish, sharks, ammonites, seabirds, and even other mosasaurs. Despite their fully aquatic lifestyle, mosasaurs were air-breathing reptiles and had to surface regularly, much like modern whales. They thrived in oceans around the world until the Cretaceous–Paleogene extinction event 66 million years ago, which wiped out the dinosaurs and many marine reptiles, bringing the age of mosasaurs to an end.
Mosasaurs were large, carnivorous marine reptiles that lived during the Late Cretaceous Period, approximately 90 to 66 million years ago. Though often mistaken for dinosaurs, they were actually more closely related to modern monitor lizards, including the Komodo dragon. Over time, their ancestors transitioned from land to sea, evolving paddle-like flippers, streamlined bodies, and powerful tails that made them highly efficient swimmers. Some species developed crescent-shaped, shark-like tail fins that allowed for strong, sustained propulsion through open water. Sizes varied widely, with many species measuring 20 to 30 feet long, while the largest—such as Mosasaurus hoffmannii—may have exceeded 50 feet in length.
As apex predators, mosasaurs occupied the top of the marine food chain. Their long jaws were lined with sharp, conical teeth ideal for gripping slippery prey, and fossil evidence shows they fed on fish, sharks, ammonites, seabirds, and even other mosasaurs. Despite their fully aquatic lifestyle, mosasaurs were air-breathing reptiles and had to surface regularly, much like modern whales. They thrived in oceans around the world until the Cretaceous–Paleogene extinction event 66 million years ago, which wiped out the dinosaurs and many marine reptiles, bringing the age of mosasaurs to an end.
SPECIES
Unidentified Mosasaur, Pycnodus sp.
LOCATION
Goulmima, Morocco
SIZE
5.9 x 5.1"
CATEGORY
SUB CATEGORY
ITEM
#107151
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