Morrillia is an extinct genus of proboscidea

Proboscidea

Proboscidea is a taxonomic order containing one living family, Elephantidae, and several extinct families. This order was first described by J. Illiger in 1881 and encompasses the trunked mammals...

, family Gomphotheriidae, endemic to North America

North America

North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

 during the Pleistocene

Pleistocene

The Pleistocene is the epoch from 2,588,000 to 11,700 years BP that spans the world's recent period of repeated glaciations. The name pleistocene is derived from the Greek and ....

 epoch from 1.810 Ma—300,000 years ago, living for approximately .

Morrillia may have had two tusks on each side of its trunk like Gomphotherium

Gomphotherium

Gomphotherium is an extinct genus of proboscid which evolved in the Early Miocene of North America from 13.650—3.6 Ma, living about .The genus emigrated into Asia, Europe and Africa after a drop in sea level allowed them to cross over...

.

Taxonomy

Morrillia was named by Osborn (1924). It was assigned to Gomphotheriidae by Osborn (1924) and Shoshani and Tassy (1996).

Fossil distribution

Fossil distribution is reserved to Navajo County, Arizona

Navajo County, Arizona

-2010:Whereas according to the 2010 U.S. Census Bureau:*49.3% White*0.9% Black*43.4% Native American*0.5% Asian*0.1% Native Hawaiian or Pacific Islander*2.5% Two or more races*3.3% Other races*10.8% Hispanic or Latino -2000:...

 and Briscoe County, Texas.