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Updated: Jun 21, 2025

A Practical Guide to Phylogenetics for Nonexperts
Published on: February 5, 2014
New method for taxonomic descriptions with coded notation, producing dynamic and interchangeable output
Douglas Zeppelini1,2, Misael Augusto de Oliveira-Neto1,2, João Victor Lemos Cavalcante de Oliveira1
1Laboratório de Sistemática de Collembola e Conservação, Instituto de Biologia de Solo Universidade Estadual da Paraíba João Pessoa PB Brazil.
Abstract:
A proposal for taxonomic species description notation is presented to replace the traditional descriptive texts for a coded matrix, avoiding redundant adjectives and subjective descriptions. This is an attempt to enhance the species description rate and to make the descriptions output available to other scientific disciplines, machine learning, interactive and computer-assisted identification keys, metadata analysis and its applications. The method consists of presenting the description of the overall morphology in a coded matrix, following a character list with detailed observed conditions for each character. The method is dynamic and open to amendments and new data addition as they become available. We test the new method describing five new species of Collembola Symphypleona of the genus Pararrhopalites as a generalized model and made the coded output available. We conclude that a coded taxonomic description is an advance to the traditional taxonomic text, with potential to enhance the global descriptions rate. The generated descriptions are dynamic, expandable and can be easily used in other fields of science, allowing non-experts to access the data for phylogenetic, biogeographic, ecological studies and metadata analysis. Even though an experienced taxonomist will always be necessary to make a detailed taxonomic description, it is a step forward to a general template to semi-automated taxon recognition and to future development of auxiliary tools for species description using machine learning and templates to speed up the time-consuming phase of schematic figures preparation, after the expert interpretations are done.
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