RECOGNITION OF THE ASTEROID (ECHINODERMATA) CROWN GROUP: IMPLICATIONS OF THE VENTRAL SKELETON
作者： DANIEL B. BLAKE , FREDERICK H. C. HOTCHKISS
DOI: 10.1666/0022-3360(2004)078<0359:ROTAEC>2.0.CO;2
关键词: Paleontology 、 Disk size 、 Geology 、 Fossil Record 、 Asteroid 、 Cladistics 、 Crown group 、 Paleozoic
摘要: … Actinal alignment is of one of two patterns, parallel to adambulacrals or parallel to … in the crown group are tentatively considered to be an apomorphy of the crown group, although the …
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