2004 South American Under-23 Championships in Athletics per country for the team trophy was published. 2004 South American Under-23 Championships in Athletics The 1st South American Under-23 Championships in Athletics were held in Barquisimeto, Venezuela, at the Polideportivo Máximo Viloria on June 26–27, 2004. A total of 310 athletes from 13 countries were announced to participate: Argentina (29), Bolivia (5), Brazil (84), Chile (43), Colombia (36), Ecuador (24), Guyana (4), Panamá (2), Paraguay (3), Perú (5), Surinam (2), Uruguay (6), Venezuela (68). Athletes from the Dominican Republic (4), from the Netherlands Antilles (4), and from Trinidad and Tobago (11) were invited as guest athletes in accordance with
Endemic flora of Trinidad and Tobago rate of endemism, probably as a result of its geological history. The islands of Trinidad and Tobago lie on the South American continental shelf, and were both connected to the mainland during the Pleistocene. Tobago was separated from the mainland about 13,000 years ago; Trinidad was connected until more recently, and may only have become separated about 1,500 years ago. The flora of Trinidad and Tobago has been estimated to include about 2,500 vascular plant species. Although historically as many as 222 species were thought to be endemic, a study by Veerle Van den Eynden and colleagues at the University