... Carruthers who argued it was a giant alga (1872). Until recently most scientists have tended to agree with Carruthers, but recent analysis suggest that neither Carruthers nor Dawson were fully correct. This paper focuses on the historical origins of the Prototaxites-Nematophycus debate, specifically...

..., histological structure, and affinities of Nematophycus logani Carr ( Prototaxites logani Dawson), an alga of Devonian age : Monthly Microscopical Journal , v. 8 pp. 160 - 172 . Church , A.H. , 1919 , Thallasiophyta and the subaerial transmigration : Oxford Botanical Memoir No. 3 , Oxford...

... south and southwest Wales, Great Britain : Palaeontographica , 236B . 1 – 44 . Carruthers , W. , 1872 , On the history, histological structure, and affinities of Nematophycus logani Carruthers ( Prototaxites logani Dawson) : Transactions of the Royal Microscopy Society , 8 . 160...

... and their dinosaurian fauna . Available at: http://terpconnect.umd.edu/~gdouglas/ironores/index.html . Lindsay , Debra. 2005 . Prototaxites Dawson, 1859 or Nematophycus Carruthers, 1872: geologists v. botanists in the formative period of the science of paleobotany . Earth Sciences History 23 : 35...