Terrestrial Devonian-Carboniferous boundary sections are present in the East Greenland Devonian Basin. The boundary section on Stensiö Bjerg developed in deep, distal lake sediments with a pair of lakes representing the boundary. A diverse spore assemblage developed as the lake flooded the basin. Previously abundant spores, notably Retispora lepidophyta, Diducites spp., Rugospora radiata and all forms with bifurcate tips (Ancyrospora and Hystricosporites), then became extinct through just over a metre of section. The spore assemblage is then lost into AOM rich very high TOC% lake sediments. There is a negative δ¹³C_TOC excursion in the Stensiö Bjerg section interpreted to represent the upper part of the positive excursion known from marine sections. The upper lake contains the simple VI spore assemblage of the earliest Carboniferous age. The correlative section on Rebild Bakker was developed in shallow proximal facies without AOM and shows that a Devonian-Carboniferous LN* to VI spore zone boundary can be picked in the lower lake based on the last occurrence of Retispora lepidophyta in an assemblage otherwise dominated by simple spores and Grandispora cornuta. Spores in this VI spore assemblage, particularly Grandispora cornuta, show sculpture malformation that is entirely characteristic of UV-B radiation damage to their DNA prior to deposition of its protective wall layer. This palynological record showing the rapid extinction of major elements within the Late Devonian microflora can be reconciled with accounts claiming there was no mass extinction of plants and spores across the boundary. The palaeobiology of the major spore groups that became extinct is reviewed.

东部格陵兰泥盆纪盆地存在陆盆泥盆纪-石炭纪界线段。StensiöBjerg的边界部分发育在较深的远端湖泊沉积物中，其中有一对湖泊代表边界。湖水淹没盆地后，形成了各种各样的孢子。以前丰富的孢子，特别是鳞翅目Redispora lepidophyta，Diducites spp。，Rugospora radiata和所有带有分叉尖端的形态（Ancyrospora和Hystricosporites），然后在短短一米的时间内灭绝。然后，孢子组合丢失到富含AOM的非常高的TOC％湖泊沉积物中。有一个负δ ¹³ C ^ _TOCStensiöBjerg部分的偏移被解释为代表海洋部分已知的正偏移的上部。上湖包含最早的石炭纪的VI孢子组合。Rebild Bakker的相关部分是在没有AOM的浅近端相中发育的，表明根据最后一次出现的鳞翅目Retispora lepidophyta在一个组合中的情况，可以在下湖中采集泥盆纪-石炭纪LN *至VI孢子带的边界。孢子和大孢子。此VI孢子组合中的孢子，尤其是Grandispora cornuta，显示出雕塑畸形，这完全是UV-B辐射在其保护性壁层沉积之前对其DNA造成损害的特征。这项孢粉学记录显示，泥盆纪晚期微生物区系中的主要元素迅速灭绝，可以与声称跨界没有植物和孢子大规模灭绝的说法相吻合。综述了灭绝的主要孢子群的古生物学。