The morphology of Andalucia broadly resembles that of other jakobids. Molecular data has not always been conclusive, but recent phylogenomic analyses indicate that Andalucia is a sister group to the other jakobids, in other words more closely related to them than to the Heterolobosea or Euglenozoa (the other two groups in the Discoba). The α-tubulin gene of Andalucia more closely resembles that of opisthokonts and diplomonads than its closer relatives, the apparent result of horizontal gene transfer.
^ abLara, Enrique; Chatzinotas, Antonis; Simpson, Alastair G. B. (2006), "Andalucia (n. Gen.)-the Deepest Branch Within Jakobids (Jakobida; Excavata), Based on Morphological and Molecular Study of a New Flagellate from Soil", The Journal of Eukaryotic Microbiology53 (2): 112–20, doi:10.1111/j.1550-7408.2005.00081.x, PMID16579813