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贵州省剑河凯里生物群是研究寒武纪大爆发后生物类群分化的关键化石记录之一,但其中的宏观藻类研究目前还比较欠缺.报道了产自该生物群中的两个新的宏观藻类,包括一个新属种和一个未定种.标准平行藻(新属、新种)Parallelphyton tipica gen.et sp.nov.的藻丝分化方式与现生异丝型绿藻费氏藻属Fritschiella的丝体系统分化特征有些相似,另一属种未定藻类Gen.et sp.indet的具粗壮主枝和侧枝再次二歧分叉的特征可以类比裸蕨Psilophyton的二歧式分枝方式.由此可见,这两个藻类在其藻丝体分枝生长方式上已经表现了一些高等后生植物的生长性状,表明该生物群在宏观藻类中已具有生态分异的进步特征.
The Kaili Biota in Jianhe, Guizhou Province is one of the key fossil records to study the taxonomic differentiation of the Cambrian after the great Cambrian explosion, but the macroscopic algae research in this area is still lacking.Recently, two new Macroscopic algae, including a new species and an undetermined species. Standard parallel algae (new genera, new species) Parallelphyton tipica gen.et sp.nov. Of the filamentous phylogenetic lineages are similar in some aspects, and the genus et.et sp. In the other genus, Gen.et sp.indet, is characterized by the divergent bifurcation of the stout main branch and the lateral branch analogously to the bifidus branching of the Psilophyton of the naked fern It can be seen that these two algae have already shown the growth traits of some higher epiphytes in the way of their algal filamentous growth, indicating that the biota already has the characteristics of ecological differentiation in macroalgae.