NEW MICROORGANISMS FROM THE APHEBIAN GUNFLINT
NEW MICROORGANISMS FROM THE APHEBIAN GUNFLINT
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来自 Aphebian Gunflint 的新微生物
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
S. Awramik
中科院分区：
文献类型：
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作者：
E. Barghoorn;S. Awramik
两个新的藻类分类描述了大约2000万年的老Gunflint铁组，安大略省。细尾藻（Leptoteichos golubicii, n. gen. et sp.）是一种较大的球形浮游生物，生活在Gunflint盆地中部以上的水柱中。死后的降解过程作用于这个分类群，产生类似于年轻的真核细胞所表现出的“斑点细胞”组织；然而，L. golubicii在这里被放在incertae seis藻类中，被认为是一种可能的蓝藻。巨藻（Megalytrum diacenum, n. gen. et sp.）是一种保存完好的藻球菌蓝绿藻的鞘。它构成了Gunflint铁组藻燧石相微生物群的异域元素。
Two new algal taxa are described from the approximately 2,000 m.y. old Gunflint Iron Formation, Ontario. Leptoteichos golubicii, n. gen. et sp., were relatively large (5-31 FIm) spherical plankters living in the water column above the central portions of the Gunflint basin. Post-mortem degradation processes have acted on this taxon to produce a "spot cell" organization similar to that exhibited by younger putatively eukaryotic cells; however, L. golubicii is here placed among the Algae incertae sedis and considered to be a probable cyanophyte. Megalytrum diacenum, n. gen. et sp., is the preserved sheath of a colonial chroococcalean blue-green alga. It constitutes an allochthonous element of the algal chert facies microbiota of the Gunflint Iron Formation.