Wildfires occurred more or less regularly in many Pennsylvanian ecosystems, not only in seasonally dry regions but also in the ever wet tropics. One of the reasons for this was probably the relatively high atmospheric oxygen conditions prevailing during this period. The present study reports evidence for the occurrence of wildfires during deposition of the Upper Pennsylvanian Heusweiler Formation (“Stephanian B”, Kasimovian–Gzhelian) in the intramontane Saar-Nahe (or Saar-Lorraine) Basin in SW-Germany. Based on anatomical features of the charcoal, as well as the co-occurring adpression flora, it seems possible that some of the fires occurred in an ecosystem inhabited by Cordaites. Some of the charcoal fragments exhibit traces of pre-charring decay by fungi, indicating either the consumption of litter by ground or surface fires, or of still standing (partly) dead trees by crown fires.

在宾夕法尼亚州的许多生态系统中，野火或多或少经常发生，不仅在季节性干旱的地区，而且在湿润的热带地区。原因之一可能是在此期间盛行的相对较高的大气氧条件。本研究报告了在德国西南部山内萨尔-纳河（或萨尔-洛林）盆地上宾夕法尼亚州上Heusweiler组（“ Stephanian B”，Kasimovian-Gzhelian）沉积过程中发生野火的证据。根据木炭的解剖特征以及同时出现的压迫菌群，似乎有一些火可能发生在科尔多瓦人居住的生态系统中。一些木炭碎片显示出炭化前被真菌腐烂的痕迹，表明要么被地面或地面火烧掉了枯枝落叶，要么被冠火烧死了（部分）枯死的树木。