570 J. W. KIEKTBY ON MARINE FOSSILS IN iKt 



Between the last-named limestone and the next marine bed I 

 estimate a thickness of 120 feet of measures, most of which are so 

 much denuded as to be hidden from view by sand. At the west 

 end of Anstruther Wester there is a limestone 15 inches thick, 

 containing Myalina modioliformis. The limestone is grey (weather- 

 ing yellow), hard, and with shaly partings. In it and the under- 

 lying shale are the following species : — 



Fossils of Zone 17, at 3600 feet. 



Myalina modioliformis, Brown. 

 Carbonia subula, J. ^ K. 

 Spirorbis, sp. (large). 



Teeth, scales, and ^bones of small 



Granoids. 

 Fragments of carbonized wood. 



200 feet of measures intervene, including thick irregularly bedded 

 sandstones, white, reddish, and yellow in colour, and shales and fire- 

 clays with ironstone and sandstone bands. There are no coals, 

 though Stigmarian rootlets are plentiful enough in the fireclays. 

 At 3750 feet there is a limestone, but its only fossils are the scales 

 of small Ganoids, Coprolites, Leperditia OJceni, var. scotohurdiga- 

 lensis, Beyrichia^ Cyclopteris Jlahellata (large), Sphenopteris affinis, 

 fern-stems, and Carpolithes sulcata. 



Then is reached the lowest limestone in which I have seen marine 

 fossils. This bed is about a foot thick, hard, and grey (weathering 

 red on the surface) ; it is seen near high- water mark at Anstruther 

 Wester, a little to the west of the Dreel Burn. 



Orthoceras, sp. 



Macrocheilus striatulus, sp. nov 

 Myahna modioliformis, Brown. 

 Bairdia nitida, J. ^ K. 



Fossils of Zone 18, at SSOO feet. 



Beyrichia subarcuata, Jones. 

 Leperditia Okeni, yar. 

 Spirorbis, sp. 



About 130 feet of measures crop out below this limestone before the 

 dip is reversed. They consist of grey and yellow sandstones and 

 grey shales, with a thin band (6 inches) of limestone and a 4-inch 

 layer of coal. In them occur the scales and plates of small Ganoid 

 fishes, Beyrichia suharcuata, Leperditia OJceni, var. attenuata, 

 Oarbonia fahulina, G. ManJciniana, Spirorbis attached to plants and 

 free, Sphenopteris affinis, and Stigmaria. The Beyrichia and a var. 

 of Lep. Oheni are found in the lowest shales, just to the west of 

 Anstruther Harbour. 



The measures about Anstruther Harbour are the lowest Calciferous 

 Sandstones that I have seen on the Fife coast. From Anstruther to 

 Crail the dip is reversed, and the strata seen at Anstruther Wester, 

 and from there to the west of Billow Ness, again appear, though not 

 so clearly and consecutively as before. Beyond Crail, and on to 

 Fife ISTess, and then westward by Kingsbarns, Babbet Ness, Pitmilly 

 Burn, and Borehills, the strata continue rolling, apparently in a 

 portion of the series equivalent to that seen east and west of Billow 

 Ness. Nearer St. Andrews higher beds appear to come up ; for to 

 the east of the Bock and Spindle there is a thin crinoidal limestone 

 and associated shale, containing a similar suite of marine fossils 

 as that found in the Encrinite-bed at Pittenweem. 



