Answers are grounded in this paper and cite their sources.
Hepaticites devonicus is described from the lowermost Upper Devonian of New York. Many fragments were obtained by macerating shale This is the oldest fossil hepatic reported to date. It is tentatively considered to be a member of the Anacrogynae, and is compared with the living genera Pallavicinia and Metzgeria. FRANCIS M. HUEBER, Department of Botany, Cornell University, Ithaca, New York.
No takes yet. Share an insight, caveat, or question.
Francis M. Hueber (1961) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: