Sa tacsanomaíocht bitheolaíochta, is éard is fíleam ná aicme tacsanomaíoch faoin ríocht agus os cionn an ranga. Tagann an focal ón Sean-Ghréigis φυλαί (phylai), na grúpaí vótaíochta chlannlárnacha i gcatharstáit na Sean-Ghréige.

• Major Phyla Of Animals Curtha i gcartlann 2006-07-16 ar an Wayback Machine
• Are phyla "real"? Is there really a well-defined "number of animal phyla" extant and in the fossil record? Curtha i gcartlann 2006-06-22 ar an Wayback Machine

• American Heritage Dictionary: New Latin phylum, from Greek phūlon, class.
• Online Etymological Dictionary: from Gk. phylon "race, stock," related to phyle "tribe, clan," and phylein "bring forth" of physikos "pertaining to nature," from physis "nature"

Is síol é an t-alt seo. Cuir leis, chun cuidiú leis an Vicipéid. Má tá alt níos forbartha le fáil i dteanga eile, is féidir leat aistriúchán Gaeilge a dhéanamh.