*[http://waynesword.palomar.edu/trnov01.htm MajorMga PhylaPangunahin OfLapi Animalsng mga Hayop]
*[http://www.pandasthumb.org/archives/2005/04/down_with_phyla_1.html AreTotoo phylaba "real"?ang mga Islapi? therereallyMayroon aba well-definedtalagang tamang "numberbilang ofng animalmga phylalapi ng hayop" extantna nabubuhay at nasa andtalaan inng themga fossilbakas record(posil)?]