Fig. 4
From: Vegetation response to exceptional global warmth during Oceanic Anoxic Event 2

Tentative changes in mid-latitude vegetation patterns during OAE2. During OAE mode A (e.g. represented by AZ II, IV and VI), the prevailing climate was characterized by exceptional warmth and high moisture availability, giving way to conifer-dominated forests with moderate angiosperm contribution. During OAE mode B (AZ III and V), climatic conditions were cooler and less humid resulting in an open, savanna-type vegetation community with increased abundances of Normapolles-producing angiosperms. (a) Araucariaceae, (b) other conifers incl. Cheirolepidiaceae, (c) Cupressaceae, (d) angiosperms incl. Normapolles-producing forms, (e) ferns