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报道了山西太原西山煤田早二叠世早期太原组上部7号煤层煤核中一种具解剖构造的观音座莲目生殖器官化石。经对比研究,将其归入辉木科虫囊蕨属(ScolecopterisZenker)。它与虫囊蕨属已有的4个组(共29个种)都不一样,因此代表了一个新的类型:Shanxiensis组,标本被命名为山西虫囊蕨(新种)Scolecopterisshanxiensissp.nov.。其主要特征是:生殖小羽片可能为栉羊齿型,聚合囊着生于小羽片背面的侧脉上,沿中脉两侧排列,各有一行,每行大约有10枚,侧脉不分叉;叶片边缘具裂片并背卷,将聚合囊半包围;聚合囊椭球形,高0.7~0.8mm,直径0.6~0.7mm,顶端钝圆,基部呈心形,具小的柄,仅在柄的基部见有维管组织;聚合囊由5~7(多为6)个纺锤形孢子囊构成,它们的基部融合在一起,着生于柄的顶端,中央薄壁组织柱不发育;孢子囊面向外的壁在基部由2~3层细胞构成,中部变薄,为1~2层,至顶部又变为2~3层细胞厚;侧壁在成熟时分离,由单层栅栏状细胞构成,厚度均一,开裂沿面向内的壁的中部进行,纵裂;孢子囊顶端直,不弯曲;孢子小,圆三角形或近圆形,直径一般11~14μm,具三缝,表面光滑或?
Reported an anatomical Aconitum lotus genital fossil in the coal core of No.7 seam in the upper part of Early Permian of Early Permian in Xishan Coalfield, Shanxi Province. After comparative study, it was classified as ScolecopterisZenker. It is different from the existing four groups (29 species) in all, and therefore represents a new type: Shanxiensis group, which was named Scolecopterisshanxiensissp. nov . Its main features are: Reproductive pinnules may be Gallus gallus, polygamous capsule on the back of the pinnules on the lateral veins, arranged along the two sides of the veins, each with a line, about 10 per line, lateral veins not bifurcation ; Blade edge with lobes and rewound, the polymer capsule surrounded by a semi-spherical; Polycystic vesicle ellipsoid, high 0.7 ~ 0.8mm, diameter 0.6 ~ 0.7mm, apex obtuse, base was heart-shaped, with small The stalk, with vascular tissue only at the basal part of the stalk, is comprised of 5-7 (mostly 6) spindle-shaped sporocysts with their basal fusions fused together at the apical end of the stalk, the central parenchyma column The outer wall of the sporangia is composed of 2 to 3 layers of cells at the base, the middle is thinning to 1 to 2 layers, and the top of the layer is changed into 2 to 3 layers of cells; the side walls are separated at maturity, Layer of palisade cells, uniform thickness, cracking along the inward-facing wall of the middle, longitudinal cracking; sporangia straight top, not bending; spores small, round triangle or nearly circular, diameter 11 ~ 14μm, with three seams, Smooth surface or?