THE CARBONIFEROUS ANNELIDA OF THE CLYDE 



DRAINAGE AREA. 



BY (THE LATE) JOHN YOUNG, LL.D., F.G.S. 



CASTS and tracks of these organisms are to be met with in both the Lower 

 and Upper divisions of the Carboniferous rocks of the Clyde area. 



Many traces of the smaller Annelids are found in the debris of the weathered 

 limestone shales. A most interesting exposure of sandstone beds, con- 

 taining abundance of the tubes or burrows of Arenicolites, afterwards filled 

 with dark clay, is to be seen at Burnfield Quarry, near Thornliebank. After 

 a period of possession the inhabitants seem to have died out, their remains 

 having been covered up by a barren layer of shale, and this alternation has 

 occurred some 12 or 14 times with the utmost regularitv. 



CD / 



Arenicola, Lamarck, sp. 

 Ortonia carbonaria, /. Young. 



Serpulites carbonarius, M i Cov. 



S. compressus, Gow. 



S. membranaceus, IP Coy. 



Spirorbis caperatus, 



S. carbonarius, Murch., sp 



S. helicteres, Salter. 

 S. spinosus, -de Kon. 

 Vermilia minuta, Brown. 



Burnfield Quarry, Thornliebank. 



Orchard, Boghead, Calderside, Brock- 

 ley, Craigenglen. 



Sculliongour, Langside, Beith. 



Trearne (common). 



Gare, High Blantyre (common). 



Craigenglen (very rare). 



Brockley, Gare, on shells, crinoids, etc. 



Upper Coal-measures, on shells and 

 plants. 



Newton, Cambuslang. 



Hairmyres, Roughwood. 



Gare, Eobroystou, Highfield, Dairy, 

 Capelrig, East Kilbride. 



