Complete fossils must be preferred to fragments for most palaeontological studies, but disarticulated specimens are nonetheless potential sources of noteworthy data. Two crinoid pluricolumnals are recorded from the lower Palaeozoic; informed discussion shows each is a basis for palaeobiological interpretation. Both are gracile and are probably belong to disparids. Floricrinus (col.) sp. is from the Silurian of Wenlock Edge, Shropshire, either from the Much Wenlock Limestone Formation (Wenlock) or, more likely, the Lower Elton Formation (Ludlow). This is the first crinoid from the Silurian of the British Isles with a pentapetaloid arrangement of the areola, a geometry common in the Middle-Upper Ordovician and higher in the geologic column. Pluricolumnal gen. et sp. indet. is from the Lower Llanvirn of Powys. One end of the otherwise straight specimen is tightly coiled. This is likely the proxistele, the most flexible region of the column, and the coiling occurred after the crown was lost by autotomy in response to an environmental disturbance.

对于大多数古生物学研究而言，完整的化石必须比碎片更可取，但是，分离的标本仍然是值得注意数据的潜在来源。在下古生界记录了两个海百合的柱状小柱。知情的讨论表明，每一个都是古生物学解释的基础。两者都是脆弱的，可能属于异族。花ic（col。）sp。来自什罗普郡温洛克边缘志留系，或者来自许多温洛克石灰岩地层（温洛克），或者更可能来自下埃尔顿地层（卢德洛）。这是不列颠群岛志留纪的第一个海百合，乳晕的五倍体排列，这种几何形状在中上奥陶纪普遍存在，而在地质列上则较高。Plumicolumnal gen。等。indet。来自Powys的Lower Llanvirn。否则将笔直的样本的一端紧紧卷起。这很可能是邻近区域，即柱子的最柔性区域，并且在因环境干扰而通过自动切开术丢失牙冠后发生了卷曲。