Una propuesta de etiquetado de microfósiles mediante un código de colores en el 5th Palaeontological Virtual Congress

Durante la quinta edición del Palaeontological Virtual Congress que ha tenido lugar durante el pasado mes de marzo, se presentó la comunicación titulada: "Proposal for managing microfossil labelling using colour codes". En este proyecto se propone reemplazar el siglado alfanumérico por un sistema basado en colores y su combinación, con el objetivo de facilitar una identificación visual rápida y eficiente. Esta metodología también permitirá reducir el espacio necesario para el siglado, lo que permite su aplicación en fósiles de pequeño tamaño, como dientes de cocodrilo y terópodo.

Además, se ha diseñado un sistema de organización asociado al código de color, que no solo optimiza la devolución de los ejemplares, sino que también reduce la posibilidad de disociación, mejorando al mismo tiempo el almacenamiento y la conservación de los mismos. El resumen es el siguiente:

Analyses of collections of small fossil vertebrate teeth, obtained by screen washing and hand picking of sediment samples, rank amongst the commoner techniques for determining the diversity of past ecosystems. However, the handling and management of these fossils present specific challenges due to their small size, particularly concerning the difficulty of applying legible and visible labelling, especially with alphanumeric characters. This increases the risk of dissociation between the fossils and their associated documentation.
A colour-coded labelling system is proposed here as an alternative to alphanumeric characters. This method links each specimen to its specific position within a storage box, where the necessary documentation for its identification is kept. Before applying the label, the most suitable area of the tooth is carefully assessed in order to avoid interfering with its future study.
The labelling system uses two coloured dots, each representing a row and column in the storage box, employing standardised colours based on the Pantone system. The dots are applied directly to the specimen's surface using an entomological needle, ensuring both precision and a minimal size. Corresponding positions in the box are marked with the same code, enabling specimens to be systematically returned to their original locations, thereby improving organisation and accessibility.
Each box incorporates a digital system with individual QR markers linking to associated information, such as photographs, photogrammetry models, and damage maps. This approach ensures the proper identification and preservation of specimens, minimises the risks of dissociation, facilitates handling, and optimises their consultation within scientific collections.