We compiled the numerous fossil records (486) assigned to Nothofagaceae including pollen grains (from surface sediments and continental and oceanic borehole cores), leaves, woods and reproductive structures from South America. All the records are revised and the latest systematic treatments and ages of the bearing strata of each record are followed. When possible, we proposed a subgeneric affinity to each record based on updated bibliography. Fossils of three (Nothofagus, Fuscospora and Lophozonia) of the four subgenera are found in similar proportions through time since the Late Cretaceous. Fossils with reliable affinity with subgenus Brassospora were not found in South America. Most of the records are concentrated in the southern tip of South America (Patagonia Region) and nearby areas. After a significant presence of Nothofagaceae in the Cretaceous, the family declined in diversity and abundance in the Palaeocene and then increased from the Eocene to the Miocene. In the Miocene, the records reach their maximum diversity and abundance, and Nothofagaceae usually dominate the assemblages of pollen, leaves and woods from Patagonia. Pliocene Nothofagaceae records are virtually absent, probably because sedimentary rocks of that age are rare in Patagonia. The fossil record for Nothofagaceae varies according to environmental turnover; when tropical/subtropical floras were present in Patagonia in the Palaeocene–early Eocene, Nothofagaceae contracted southwards and when open steppes developed in the Miocene of east Patagonia, Nothofagaceae contracted westward.

中文翻译：

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南美Nothofagaceae的微化石和巨型化石记录

我们汇总了分配给Nothofagaceae的众多化石记录（486），包括花粉粒（来自表面沉积物以及大陆和海洋钻孔岩心），来自南美的叶子，木材和生殖结构。修订所有记录，并遵循每个记录的最新系统处理方法和年龄。在可能的情况下，我们根据更新的参考书目对每个记录提出了一个子类关联。自白垩纪晚期以来，四个亚属中的三个化石（Nothofagus，Fuscospora和Lophozonia）的时间比例相似。与Brassospora属具有可靠亲和力的化石在南美找不到。大多数记录都集中在南美的南端（巴塔哥尼亚地区）和附近地区。在白垩纪Nothofagaceae大量存在后，该家族在古新世的多样性和丰度下降，然后从始新世到中新世。在中新世，记录达到了其最大的多样性和丰度，Nothofagaceae通常主导巴塔哥尼亚的花粉，树叶和木材的组合。实际上缺少上新世Nothofagaceae科记录，可能是因为在巴塔哥尼亚很少有该年龄的沉积岩。Nothofagaceae的化石记录随环境变化而变化。当古新世早始新世的巴塔哥尼亚存在热带/亚热带植物区系时，