Krings, M. (2024). Algae from the Lower Devonian Rhynie chert: Harpericystis verecunda gen. et sp. nov., a probable green alga (Chlorophyta) that forms few-celled colonies. Review of Palaeobotany and Palynology. 331: a105190.
Algae from the Lower Devonian Rhynie chert: Harpericystis verecunda gen. et sp. nov., a probable green alga (Chlorophyta) that forms few-celled colonies