THE CONODONTS OF THE CARBONIFEROUS ROCKS 

 OF THE CLYDE DRAINAGE AREA. 



BY JOHN SMITH. 



IT has long been a subject of dispute as to the order of animal life to which 

 Conodonts belonged. Dr. Pander was the first to discover their remains, in 

 1856, and I found them in Scottish Carboniferous strata in 1876. I did not, 

 however, publish my observations till 1899, so that I have had ample time to 

 make a fairly exhaustive search for them in the rocks of the West of 

 Scotland. 1 Being minute and very tender these organisms require to be 

 searched for in the most careful manner. They are found chiefly in the 

 powder of rotted limestone, and, but very rarely, in shale, belonging to the 

 Upper and Lower Limestone series. These are indicated in the following 

 list by letters in heavy type, U.L.S. and L.L.S. : 



Polygnathus dubius, Hinde. L.L.S., Birkhead, Dairy ; U.L.S., Stack - 



lawhill, Stewarton ; Robroyston, Glasgow. 

 P. (Gnathodus) mosquensis, Pander. L.L.S., Cunningham-Baidland ; Law 



and Birkhead, Dairy ; Glenbuck, Muirkirk ; U.L.S., Glencart, Dairy : 



Linn Spout, Dairy ; Monkcastle, Kilwinning ; Stacklawhill, Stewarton : 



Robroyston, Glasgow. 



P. navicula, Hinde. L.L.S. , Poneil, Douglas. 

 P. (Centrodus) connexus, Pander. L.L.S., Law and Auchenskeith. 



Dairy ; U.L.S., Glencart ; Monkcastle. 

 P. situlus, Zfrnafe.- -U.L.S., Linn Spout ; Monkcastle; Glencart; Orchard: 



Hillhead, Chryston ; Limekilns, E. Kilbride. 

 Centrodus duplicatus, Pander. L.L.S., Law ; Birkhead ; U.L.S., Glencart : 



Monkcastle. 



C. lineatus, Pander. U.L.S., Linn Spout ; Glencart ; Monkcastle ; Orchard. 

 Prioniodus tulensis. Pander. [Skateraw, Dunbar ;] L.L.S., Glenbuck : 



Law ; U.L.S., Glencart. 



P. angulatus, Hinde. L.L.S., Birkhead ; U.L.S., Glencart ; Monkcastle. 

 P. spicatus, Hinde. L.L.S., Birkhead. 

 P. peracutus, Hinde. L.L.S., Law and Low Baidland, Dairy ; U.L.S., 



Glencart ; Robroyston ; Monkcastle ; Stacklawhill ; Limekilns. 

 P. complex, Hinde. U.L.S. , Glencart ; Linn Spout. 

 P. gemmus, Hinde. U.L.S., Glencart ; Linn Spout. 

 P. porcatus, Hinde. U.L.S., Monkcasfle. 

 Ctenognathus obliquus, Pander. L.L.S., Law ; Birkhead. 



1 Trans. Nat. Hist. Soc. of Glasgow, 1898-1899. 



