Dura mater. Dura mater, or dura, is a thin membrane that is the outermost of the three layers of the meninges that surround the brain and spinal cord. It is derived from mesoderm. The other two meningeal layers are the pia mater and the arachnoid mater.ura mater. Dura mater, or dura, is a thin membrane that is the outermost of the three layers of the meninges that surround the brain and spinal cord. It is derived from mesoderm. The other two meningeal layers are the pia mater and the arachnoid mater.
The story with the most credibility is the one that, the PiÃ±a Colada was introduced on August 15, 1954 at the Caribe Hiltonâs Beachcomber Bar in San Juan, Puerto Rico by its alleged creator, Ramon âMonchitoâ Marrero.
Pinta (ship) La Pinta (Spanish for The Pint (liquid measure), The Look, or The Spotted One ) was the fastest of the three ships used by Christopher Columbus in his first transatlantic voyage in 1492. The New World was first sighted by Rodrigo de Triana aboard Pinta on 12 October 1492. The owner of Pinta was Cristobal Quintero.