Abstract

Evidences of perforation of organic-walled fossil eukaryotes by other organisms has been found in the Lakhanda Lagerstätte (1030–1000 Ma, southeastern Siberia). The type of perforation is most similar to the type described from the Akademikerbren (750 Ma, Spitsbergen), Chuar (780–740 Ma, United States) and Shaler Supergroups (1150–900 Ma, Arctic Canada). The biogenic origin of the perforations has been substantiated. A hypothesis of perforation of fossils by zoosporic fungi found in the same deposits has been proposed. At the same time, the taxonomic diversity of eukaryotic “prey” taxa and the primitive morphology of such perforations do not allow us to qualify the perforators as distinct protists and do not point out the absolute certainty of selective predation among eukaryotes during the Riphean (Mesoproterozoic). Thus, the hypothesis of explosive diversification of eukaryotes in the Late Proterozoic driven by selective predation cannot yet be confirmed paleontologically.

中文翻译：

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Riphean生物群中最古老的营养相互作用的证据（Lakhanda Lagerstätte，西伯利亚东南部）

摘要

在 Lakhanda Lagerstätte（1030-1000 Ma，西伯利亚东南部）发现了其他生物对有机壁化石真核生物进行穿孔的证据。射孔类型与 Akademikerbren（750 Ma，斯匹次卑尔根）、Chuar（780-740 Ma，美国）和 Shaler 超群（1150-900 Ma，加拿大北极地区）中描述的类型最相似。穿孔的生物起源已得到证实。已经提出了在相同矿床中发现的游动孢子真菌对化石穿孔的假设。同时，真核“猎物”类群的分类多样性和此类穿孔的原始形态不允许我们将穿孔动物视为独特的原生生物，也没有指出真核生物在裂谷纪（中元古代）之间选择性捕食的绝对确定性。 ）。因此，