@article{Tortello:86186,
      author       = "Tortello, M.F.  and Museo de La Plata. Departamento
                      Paleozoología Invertebrados ",
      title        = "<a
                      href="/search?f=title&p=Biostratigraphic%20significance%20of%20the%20latest%20Cambrian-earliest%20Ordovician%20agnostoid%20trilobites%20from%20Northwestern%20Argentina&sc=1&ln=en">Biostratigraphic
                      significance of the latest Cambrian-earliest Ordovician
                      agnostoid trilobites from Northwestern Argentina</a>",
}