Abstract
Three curious types of fossil remains, collected by Mr D. Tait of the Geological Survey (Scottish Office), are here described. They are from the Downtonian (Upper Silurian) of Scotland, and are unknown from rocks of a corresponding age in England. The first type described deserves a name as being characteristic of Scottish Downtonian rocks. The other two forms are very rare, the third one described being represented by a single specimen (and counterpart), and the second by two specimens.It should be mentioned that the Geological Survey collection contains a specimen of the first type (designated Taitia catena) from the Lower Old Red Sandstone of Tealing Hill, near Dundee. This example (No. T. 1251 h) was presented to the Survey by Mr Macnicol.
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