artículo académico

• A cryptic palm-pitviper species (Squamata: Viperidae: Bothriechis) from the Costa Rican highlands, with notes on the variation within B. nigroviridis .  Zootaxa.  4138:271-290. 2016
• Comparative phylogeography of pitvipers suggests a consensus of ancient Middle American highland biogeography.  Journal of Biogeography.  36:88-103. 2008
• Modeling nucleotide evolution at the mesoscale: The phylogeny of the Neotropical pitvipers of the Porthidium group (Viperidae: Crotalinae).  Molecular Phylogenetics and Evolution.  37:881-898. 2005