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TABLE 6 in Plio-Pleistocene deep-sea crinoid (Echinodermata) diversity from the western Rodrigues Ridge, Indian Ocean, revealed by microfossil evidence

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TABLE 6. Selected measured comatulid brachials from the site RR13A on the western Rodrigues Ridge with main quantitative data. The smallest brachials were not measured. List restricted to figured brachials and brachials with minimum or maximum values of diameter in each type; diameter used as brachial growth index. D: maximum diameter, H: height, epi: episyzygial Br, hypo: hyposyzygial Br, musc: muscular synarthry (mu/musc: on both proximal and distal facets), pin: pinnule socket, sax: axial synarthry, syz: syzygy with radiate crenularium. Values in mm except ratio. See supplementary table for complete list and data of all measured brachials. Values in mm except ratio. Catalogue n°HDH/DFigureArticulationsTypeRemarkOPH2132.653.950.67Fig. 7Bsax/muscaxillaryIBr2ax?OPH214 a1.163.310.35Fig. 7Asax/musc/pinepiIIBr2?OPH214 b1.233.180.39not figuredsax/musc/pinepiIIBr2?OPH214 d0.711.780.40not figuredsax/muschypoIIIBr?OPH217 a1.022.370.43not figuredsyz/musc/pinepiMaximumOPH215 a0.982.250.44Fig. 7Dsyz/muschypoMaximumOPH215 b1.121.920.58Fig. 7Esyz/musc/pinepiOPH215 c1.031.500.69Fig. 7Csyz/musc/pinepiOPH217 m0.870.930.93not figuredsyz/musc/pinepiMinimumOPH217 n0.510.800.64not figuredsyz/muschypoMinimumOPH218 a1.082.730.40not figuredmu/musc/pinfreeMaximumOPH2161.732.320.75Fig. 7Fmu/musc/pinfreeOPH218 n1.301.261.03not figuredmu/musc/pinfreeMinimum

表6 取自罗德里格斯海脊西侧RR13A站位的部分实测羽星(comatulid)腕骨(brachials)数据,包含主要定量参数。最小尺寸的腕骨未纳入实测范围。本次列表仅涵盖已配图的腕骨,以及各类型中直径达到极值(最大或最小)的腕骨;以直径作为腕骨生长指标。D:最大直径(maximum diameter);H:高度(height);epi:联腕(episyzygial Br,episyzygial腕骨);hypo:下连腕(hyposyzygial Br,hyposyzygial腕骨);musc:肌肉型关节(muscular synarthry,mu/musc表示近、远两面均具该关节结构);pin:羽枝窝(pinnule socket);sax:轴型关节(axial synarthry);syz:具放射纹层(radiate crenularium)的联关节(syzygy)。除比值外,所有数值单位均为毫米。完整实测腕骨数据列表详见补充表。 标本编号(Catalogue n°)、D、H、长宽比、配图、关节类型、腕骨类型、备注 OPH213:2.65、3.95、0.67,图7B,轴型关节/肌肉型关节,轴腕(axillary)I组2级腕骨(IBr2),轴部? OPH214a:1.16、3.31、0.35,图7A,轴型关节/肌肉型关节/羽枝窝,联腕,II组2级腕骨(IIBr2),? OPH214b:1.23、3.18、0.39,未配图,轴型关节/肌肉型关节/羽枝窝,联腕,II组2级腕骨(IIBr2),? OPH214d:0.71、1.78、0.40,未配图,轴型关节/肌肉型关节,下连腕,III组腕骨(IIIBr?),? OPH217a:1.02、2.37、0.43,未配图,联关节/肌肉型关节/羽枝窝,最大值 OPH215a:0.98、2.25、0.44,图7D,联关节/肌肉型关节,下连腕,最大值 OPH215b:1.12、1.92、0.58,图7E,联关节/肌肉型关节/羽枝窝 OPH215c:1.03、1.50、0.69,图7C,联关节/肌肉型关节/羽枝窝 OPH217m:0.87、0.93、0.93,未配图,联关节/肌肉型关节/羽枝窝,最小值 OPH217n:0.51、0.80、0.64,未配图,联关节/肌肉型关节,下连腕,最小值 OPH218a:1.08、2.73、0.40,未配图,肌肉型关节/羽枝窝,游离腕骨,最大值 OPH216:1.73、2.32、0.75,图7F,肌肉型关节/羽枝窝,游离腕骨 OPH218n:1.30、1.26、1.03,未配图,肌肉型关节/羽枝窝,游离腕骨,最小值
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2025-04-05
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