Long-beaked river dolphin Parapontoporia sternbergi Location: San Diego Museum of Natural History, Balboa Park, San Diego, CA Year: 2014 Merckdigitals catalogue number: 22-84009 Comments: 3.5 million years old, Pliocene, San Diego Formation, San Diego, CA SDNHM 22633

Long-beaked river dolphin Parapontoporia sternbergi Location: San Diego Museum of Natural History, Balboa Park, San Diego, CA Year: 2014 Merckdigitals catalogue number: 22-84010 Comments: 3.5 million years old, Pliocene, San Diego Formation, San Diego, CA SDNHM 22633

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