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8.7" Fossil Hyaenodon Skull - South Dakota
This is a killer fossil, a skull of Hyaenodon horridus collected from Shannon County, South Dakota. The mandible measures 7.3" long by 3.6" wide. The upper skull is roughly 8.7" long. The dimensions of the entire skull are 8.7 x 4.3 x 4.05". A partial limb bone has been exposed from a section of rock at the posterior end of the skull.
Artists reconstruction of Hyaenodon.
Hyaenodons are extinct carnivorous mammals that likely preyed on the oreodonts of the Oligocene. They had large skulls, short necks, very tiny brains, and ranged in size from that of a small dog to that of a large wolf. Though Hyaena is part of their name they have no relation to modern Hyaenas. The name more refers to the likely eating habits of these carnivores as carrion eaters.
The skull itself is very impressive and wonderfully prepared. About 75% of the teeth are natural, with spots of restoration where some of the teeth were incomplete or missing. Four of the incisors are restored and each canine tooth has undergone some gap fill restoration, two of which have restored apical halves.
Both the upper skull and mandible have several areas of restoration. Portions of the left zygomatic arch are natural, with the right zygomatic being completely restored. In total, restoration makes up approximately 30-35% of the bone.
Artists reconstruction of Hyaenodon.
Hyaenodons are extinct carnivorous mammals that likely preyed on the oreodonts of the Oligocene. They had large skulls, short necks, very tiny brains, and ranged in size from that of a small dog to that of a large wolf. Though Hyaena is part of their name they have no relation to modern Hyaenas. The name more refers to the likely eating habits of these carnivores as carrion eaters.
The skull itself is very impressive and wonderfully prepared. About 75% of the teeth are natural, with spots of restoration where some of the teeth were incomplete or missing. Four of the incisors are restored and each canine tooth has undergone some gap fill restoration, two of which have restored apical halves.
Both the upper skull and mandible have several areas of restoration. Portions of the left zygomatic arch are natural, with the right zygomatic being completely restored. In total, restoration makes up approximately 30-35% of the bone.
SPECIES
Hyaenodon horridus
LOCATION
Shannon County, South Dakota
SIZE
Skull: 8.7 x 4.3 x 4.05"
CATEGORY
ITEM
#314720
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