(n.) Geology. Mega annum. The abbreviation for million years that is most commonly used in the geologic literature. Syn: My, MYBP. See: Geologic Time Scale, MYBP
Schlumberger Ltd. (The World's Leading Supplier Of Technology, Integrated Project Management And Information Solutions to Customers Working in The Oil and Gas Industry Worldwide), Schlumberger Oilfield Glossary Cedex, France 2014. http://www.glossary.oilfield.slb.com/en/Terms/sym/ a.aspx, (Ergo - Brit) {766}