系统综述表明形态变异和趋同会干扰古生代珊瑚（包括四射珊瑚）分类；因此这里只把四射珊瑚保留为化石系统单元，不主张精确祖先或端点。
claim:taxon:rugosaMorphological variation and homoplasy: the challenge of Paleozoic coral systematics
Webb, G.E.
年份1996
来源角色systematic-review
DOI / ID10.1017/S1089332600000085
适用范围
taxonomy · 形态 · methods
Systematic review of character variation and homoplasy in Paleozoic corals; historical assignments remain sensitive to preservation and coding.