Gluesenkamp, A. G. & J. M. Guayasamin. 2008. A new species of Osornophryne (Anura: Bufonidae) from the Andean highlands of northen Ecuador. Zootaxa 1828: 18-28. (PDF, solicítelo al autor <jmguayasamin@gmail.com>)
Rada, M. y J. M. Guayasamin. 2008. Redescripción de Cochranella megista (Rivero, 1985) y ampliación de la distribución de nueve ranas de cristal (Anura: Centrolenidae) en Colombia. Papéis Avulsos de Zoologia 48(12): 89-101. PDF
Guayasamin, J.M., D. F. Cisneros-Heredia y S. Castroviejo-Fisher. 2008. Taxonomic indentity of Cochranella petersi Goin, 1961 and Centrolenella ametarsia Flores, 1987. Zootaxa 1815: 25-34. (PDF, solicítelo al autor <jmguayasamin@gmail.com>)
Guayasamin, J.M., S. Castroviejo-Fisher, J. Ayarzagüena, L. Trueb y C. Vilà. 2008. Phylogenetic relationships of glassfrogs (Centrolenidae) based on mithocondrial and nuclear genes. Aceptado, Molecular Phylogenetics and Evolution.
Pramuk, J. B., M. J. Grose, A. L. Clarke, E. Greenbaum, E. Bonaccorso, J. M. Guayasamin, A. H. Smith-Pardo, B. W. Benz, B. R. Harris, E. Siegfreid, Y. R. Reid, N. Holcroft-Benson y E. O. Wiley. 2007. Phylogeny of finescale shiners of the genus Lythrurus (Cypriniformes: Cyprinidae) inferred from four mitochondrial genes. Molecular Phylogenetics and Evolution 42: 287-297 PDF
Bustamante M. R., D. F. Cisneros-Heredia, M. H. Yánez-Muñoz, H. M. Ortega-Andrade & J. M. Guayasamín. 2007. Notes on geographic distribution. Amphibia, Centrolenidae, Cochranella pulverata, Hyalinobatrachium aureoguttatum: distribution extension, Ecuador. Check List 3(3): 271-276. PDF
Guayasamin, J. M., y L. Trueb. 2007. A new species of glassfrog (Anura: Centrolenidae) from the lowlands of northwestern Ecuador, with comments on centrolenid osteology. Zootaxa 1447:27-45. PDF
Guayasamin, J. M., S. R. Ron, D. F. Cisneros-Heredia, W. Lamar y S. F. McCracken. 2006. A new species of frog of the Eleutherodactylus lacrimosus assemblage (Leptodactylidae) from the western Amazon basin, with comments on the utility of canopy surveys in lowland rainforest. Herpetologica 62(2): 191-192. PDF
Cisneros-Heredia, D. F. y J. M. Guayasamin. 2006. Amphibia, Anura, Centrolenidae, Centrolene mariaelenae: Distribution extension, Ecuador. Check List 2(3): 93-95. PDF
Guayasamin, J. M., M. R. Bustamante, D. Almeida-Reinoso y W. C. Funk. 2006. Glass frogs (Centrolenidae) of Yanayacu Biological Station, Ecuador, with the description of a new species and comments on centrolenid systematics. Zoological Journal of the Linnaean Society 147:489-513. PDF
Guayasamin, J. M. S. R. Ron, D. F. Cisneros-Heredia, W. Lamar, y S. F. McCracken. 2006. A new species of frog of the Eleutherodactylus lacrimosus assemblage (Leptodactylidae) from the western Amazon basin, with comments on the utility of canopy surveys in lowland rainforest. Herpetologica 62(2):191-202. PDF
Guayasamin, J. M., D. F. Cisneros-Heredia, M. Yánez-Muñoz y M. Bustamante. 2006. Notes on geographic distribution. Amphibia, Centrolenidae, Centrolene ilex, Centrolene litorale, Centrolene medemi, Cochranella albomaculata, Cochranella ametarsia: Range extensions and new country records. Check List 2(1):24-25. PDF
Guayasamin, J. M., y C. Barrio-Amorós. 2005. Combat behavior in Centrolene andinum (Rivero, 1968) (Anura: Centrolenidae). Salamandra 41(3):153-155. PDF
Guayasamin, J. M., y E. Bonaccorso. 2004. A new species of glass frog (Centrolenidae: Cochranella) from the lowlands of northwestern Ecuador, with comments on the Cochranella granulosa group. Herpetologica 60(4):485-494. PDF
Guayasamin, J. M., D. Almeida-Reinoso, and F. Nogales-Sornosa. 2004. Two new species of frogs (Leptodactylidae: Eleutherodactylus) from the high Andes of northern Ecuador. Herpetological Monographs 18:127-141. PDF
Guayasamin, J. M. 2004. The Eleutherodactylus orcesi species group (Anura: Leptodactylidae): Comparative osteology and comments on its monophyly. Herpetological Monographs 18:142-174. PDF).
Guayasamin, J. M. 2004. A new species of Eleutherodactylus (Anura: Leptodactylidae) from the lowlands of northwestern Ecuador. Herpetologica 60:103–116. PDF
