Simon Bolivar Youth Symphonic Band Simon Bolivar Youth Symphonic Band The Simon Bolivar Youth Symphonic Band (SBYSB) () is the principal wind band of El Sistema, is a band based in Caracas, Venezuela. Since 2008, its principal conductor has been Sergio Rosales. The Simon Bolivar Youth Symphonic Band was founded in 2005 by the general director of the Simon Bolivar Music Conservatory, Valdemar Rodríguez, and Jesús Ignacio Perez Perazzo. The SBYSB is made up of students of the Simón Bolívar Music Conservatory and is part of the Academic Program of the National System of Youth and Children’s Orchestras and Choirs of Venezuela. The SBYSB has
History of South America the continent of North America via the Panama Block that closed the marine Bolivar Trough, leading to the Great American Interchange, the interchange of biota from both continents. The first species discovered to have made the northward migration was "Pliometanastes", a fossil ground sloth species, roughly the size of a modern black bear. Several migrations to the Southern Hemisphere were undertaken by tougher, North American mammal carnivores; fewer species migrated in the opposite direction from south to north. The result of the intrusion of North American fauna was that hundreds of South American species became extinct in a relatively short