Stratigraphic Range Chart for some of the taxa discussed in this lab. Recall that solid lines represent ranges confirmed with fossil evodence. Dashed lines are inferred ranges based on fossil distributions of sister taxa. Question marks indicate hypothesized ranges. Refer to the text for more discussion of these hypotheses.
For more information of the stratigraphical ranges of fossil angiosperms, check out e.g. the Plant Fossil Record-site of the International Organisation of Palaeobotany.