About the Authors

Gaurav Srivastava

gaurav_jan10@yahoo.co.in

Affiliation Birbal Sahni Institute of Palaeobotany, Lucknow, India

Rakesh C. Mehrotra

Affiliation Birbal Sahni Institute of Palaeobotany, Lucknow, India

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GS RCM. Performed the experiments: GS RCM. Analyzed the data: GS RCM. Contributed reagents/materials/analysis tools: GS RCM. Wrote the paper: GS RCM.