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Scientific classification e
Kingdom: Plantae (?)
Phylum: Nematophyta
Class: Nematophytina
Order: Nematophytales
Family: Nematothalaceae
Genus: Nematoplexus
Lyon 1962[1]

Nematoplexus rhyniensis is a fossil known from the Rhynie chert assigned to the nematophytes.[2] It comprises a loose mass of coily aseptate tubes.[3] Tubes which may have originated from a Nematoplexus-like plant are known from earlier Silurian sediments.[4]


  1. ^ Lyon, A. G. (1962). "On the fragmentary remains of an organism referable to the nematophytales, from the Rhynie chert, Nematoplexus rhyniensis gen. et. sp. nov". Transactions of the Royal Society of Edinburgh. 65 (4): 79. doi:10.1017/S0080456800012382. ISSN 0263-5933. 
  2. ^ Fayers, S.R.; Trewin, N.H. (2007). "A new crustacean from the Early Devonian Rhynie chert, Aberdeenshire, Scotland". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 93 (4): 355–382. doi:10.1017/S026359330000047X. 
  3. ^ Burgess, N. D.; Edwards, D. (1988). "A new Palaeozoic plant closely allied to Prototaxites Dawson". Botanical Journal of the Linnean Society. 97 (2): 189–203. doi:10.1111/j.1095-8339.1988.tb02461.x. 
  4. ^ Williams, D. M.; Harkin, J.; Higgs, K. T. (1996). "Implications of new microfloral evidence from the Clew Bay Complex for Silurian relationships in the western Irish Caledonides". Journal of the Geological Society. 153 (5): 771. doi:10.1144/gsjgs.153.5.0771.