Abstract
A fossil gametophytic thallus, resembling Riccia L., from the Barail Sandstone (Early Oligocene) of the Thongjaorok Stream section (24°27′41″N and 93°44′40″E) of Manipur in Northeast India is reported as a new species — Riccia thongjaorokensis. Description of this new taxon is based on a cluster of 5–6 well preserved gametophytic thalli. This paper deals also with the paleoecology of the area.
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Hemanta Singh, R.K., Kishor, R.K. Riccia thongjaorokensis — A new fossil liverwort from Oligocene beds of the Tertiary, Northeast India. J Geol Soc India 73, 606–608 (2009). https://doi.org/10.1007/s12594-009-0046-4
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DOI: https://doi.org/10.1007/s12594-009-0046-4