Protoreodon walshi Location: San Diego Museum of Natural History, Balboa Park, San Diego, CA Year: 2014 Merckdigitals catalogue number: 22-84026 Comments: 28 million years old, Oligocene, Mission Valley Formation, El Cajon, CA Composite

Protoreodon walshi Location: San Diego Museum of Natural History, Balboa Park, San Diego, CA Year: 2014 Merckdigitals catalogue number: 22-84027 Comments: 28 million years old, Oligocene, Mission Valley Formation, El Cajon, CA Composite

Protoreodon walshi Location: San Diego Museum of Natural History, Balboa Park, San Diego, CA Year: 2014 Merckdigitals catalogue number: 22-84028 Comments: 28 million years old, Oligocene, Mission Valley Formation, El Cajon, CA Composite

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