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Abstract

Material from the Rhaetian of Tasmania referred to Thinnfeldia pinnata Walkom is described. The leaf is of thick substance, once pinnate, and probably abscissed. It shows a moderately thick cuticle with most stomata on the lower leaf surface, papillae over the stomatal pit, an unmodified leaf margin, and irregular subsidiary cells. With this information the leaf fits better in Pachypteris Brongniart than Thinnjeldia
Ettingshausen, and is transferred to Pachypteris. It is readily distinguishable from other adequately known species of the genus.

Item Type:	Article
Authors/Creators:	Townrow, JA and Jones, J
Keywords:	Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, UTAS Library
Journal or Publication Title:	Papers and Proceedings of the Royal Society of Tasmania
ISSN:	0080-4703
DOI / ID Number:	https://doi.org/10.26749/rstpp.103.63
Collections:	Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:	Copyright Royal Society of Tasmania
Item Statistics:	View statistics for this item

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