UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 ODYSSEY MARINE EXPLORATION, INC. (Exact name of registrant as specified in its charter) Nevada 84-1018684 (State or jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) 5215 W. Laurel Street, Tampa, Florida 33607 (Address of principal executive offices) (Zip Code) Securities to be registered pursuant to Section 12(b) of the Act: Name of each exchange on which Title of each class to be so registered each class is to be registered Common Stock, $0.0001 par value The NASDAQ Stock Market LLC If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c), check the following box. [X] If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d), check the following box. [ ] Securities Act registration statement file number to which this form relates: None Securities to be registered pursuant to Section 12(g) of the Act: None ITEM 1. DESCRIPTION OF REGISTRANT'S SECURITIES TO BE REGISTERED. The description of the common stock, $0.0001 par value, of Odyssey Marine Exploration, Inc. (the "Registrant") contained in the Registrant's Registration Statement on Form 8-A filed with the SEC on November 13, 2003, pursuant to Section 12 of the Exchange Act, including any subsequently filed amendments and reports updating such description, is incorporated by reference into this registration statement. ITEM 2. EXHIBITS. Under the "Instructions as to Exhibits" section of Form 8-A, no exhibits are required to be filed because no other securities of the Registrant are registered on The NASDAQ Stock Market LLC, and the securities registered hereby are not to be registered pursuant to Section 12(g) of the Securities Exchange Act of 1934. SIGNATURE Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the Registrant has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereto duly authorized. ODYSSEY MARINE EXPLORATION, INC. Date: July 5, 2007 By: /s/ Michael J. Holmes Michael J. Holmes Chief Financial Officer