to be 28, a fact that does not support the hypothesis that, during the period of amphibian evolution, the number of chromosomes became reduced. However, many caecilians have not yet been karyotyped and the exact evolutionary relationships between the species have not yet been determined, so the hypothesis is not necessarily incorrect. References compressicauda Amphibians of Brazil Amphibians of Colombia Amphibians of French Guiana Amphibians of Guyana Amphibians of Peru Amphibians described in 1841 Taxa named by André Marie Constant Duméril Taxa named by Gabriel Bibron Taxonomy articles created by Polbot