HISTORY OF RESEARCH. xiii 



Nimmo, in the year 1847, expressed his belief that Gr. 



]S[;,i,„i(, foliaceus is nothing more or less than the " serrated tail 



' Calcutta Journal of spines of the llo/ja pastinaca/' or an allied species. Such 



Natural History,' a theory, founded as it was upon the most imperfect 



^"^ '^"^ knowledge of the structure of a Graptolite, hardly merits 



serious consideration. 



In 1848 Phillips and Salter recorded Graptolithus prisfis (?), 



Phillips and Salter ^''' ^udensls, and Gr. Mnrchisoni (?) from the Llandeilo rocks 



' Memoir of the of Western England and South Wales ; and in accordance 



Geological Survey,' with the general opinion of the palgeontologists of that day, 



'^"^- "• the Graptolites are placed by these authors among the 



organisms then classed as Polyparia. 



Sedgwick, in a paper on the ' Organic Remains of the 

 Sedgwick and M'Coy, Skiddaw Slates,' published the same year, records Graptolithus 

 " On the Organic saqittarius from the Skiddaw slates. In an appendix to this 



Eeniains found in the * n^.n -, ■^ if • /-y i 



Skiddaw Slates," paper M'Loy describes and figures a new species, Gr. latus. 

 ' Quart. Journ Geol. ji is clear from the figured example that Gr. latus was in all 



SOC, vol. IV. . . ^ ... 



likelihood founded on a branch of a Dichograptid, possibly 

 the Dkiymograptas hirundo of Salter. 



1849. In 1849, Bronn gave a list of the Graptolites known up 



Bronn, to that time. These include GraptoUtJms convohdns, Gr. 



' Geschichte der sitgUtarlus, Gr. prlodon, Gr. ludensis, Gr. SedgivicMi, Gr. 



at.ui, vo . Ill, pai . (Jistans, Gr. tenuis, Gr. dentatus, Gr. scalaris, Gr. disticJtus, Gr. 



pristis, Gr. foliaceus, Gr. folium, Gr. teretiuscidus, Gr. Mnrchisoni, Gr. geminus. 



As regards the position that the Graptolites occupy in the animal kingdom, he 



classifies the Graptolithina as one of the sub-families or groups of the Anthozoa. 



1849. Salter, in his " Note on the Fossils from the Limestone 



Salter, on the Stinchar River, and from the Slates of Loch Ryan," 



'Quart. Journ. Geol. gives Hgures of seven species of Graptolite: Gr.foiium, Gr. 



^^'' ^" ■ ^' pristis (which appears to resemble Gr. mucronatus), Gr. 



pristis, var. foliaceus, Gr. ramosus, Gr. tenuis, Gr. sextans, and a new form which 



he names Gr. tasnia. This last it is impossible to identify with certainty. 



One of the figures given by Salter represents eighteen specimens of Gr. sextans 

 {Dicellograptus) apparently suspended on a branch of this so-called Gr. txnia. This 

 figure is of special interest from the modern point of view, as bearing on the 

 mode of life of the Graptolites ; but Salter himself does not draw any con- 

 clusions from the curious association. 



1849. In 1849, Sharpe, in his paper on the "Geology of the 



Sharpe, Neighbourhood of Oporto," notified the occurrence of 



' Quart. Journ. Geol. Graptolithus Murchiso7ii? in association with Trilobites of 

 Soc' vol. V. Lower Silurian a^e. 



