Curated OER
Pollen Tracks
Learners participate in an artificial dig investigating imitiation rock samples that contain "pollen" from ancient plants. Students determine which plants the pollen samples came from.
Ohio State University
Ohio State University: Anthophyta, Evolution & Diversity
An online summary of the evolution of flowering plants at an advanced level. The text is supported by good illustrations and is followed by a quiz. This is a good review for exams.