coereuleus
Coereuleus is a taxonomic name that has appeared in historical and fictional contexts but is not currently recognized as a valid genus in modern biology. The term is derived from Latin caeruleus (also seen as coeruleus), meaning blue, reflecting a common practice of using color descriptors in taxon naming. In practice, coereuleus is more often encountered as a descriptive element in species epithets rather than as an accepted genus name.
Current major databases and taxonomic authorities do not list a genus named Coereuleus as an accepted entity.
Historical and fictional contexts
In addition to potential misidentifications in scientific texts, the name may appear in non-scientific or fictional
Note: The term “coereuleus” is more reliably encountered as a Latin-root color descriptor within species names