82 Guide to Belfast. 



mark a band of Lias yields numerous specimens of Grvphcea 

 incurva. 



Other localities will be visited to fill up our information 

 on these beds: for instance, the Rh^ietic exposed in the stream 

 at foot of upper Colin Glen will yield many fish remains, 

 teeth and scales — Gyrolepis and Saurichthys apicalis. Tate's 

 measurements of the sections at this place are : 



2. Dark-coloured shales and argillaceous limestones, with 

 a few beds of sandstone at the base. In the shales are 

 found Axinus c/oacimis, Avicula contorta, Cardium rhceticutn^ 

 Pecteti valoniensis, etc. Thickness, eleven feet. 



I. Black shales and clays, arenaceous shales, thin sand- 

 stones. In two of the thin arenaceous shales are fish 

 remains — Natica Oppe/ii, Trochus IVa/ioni, Avicula contorta. 

 Thickness, eight feet. 



In the Lias of Barney's Point, vertebrae and bone referred 

 to Ichthyosaurus are occasionally found. Robert Bell recently 

 found the skull of an Ichthyosaurus in the Lias on the east 

 shore of Island Magee. The Lias of Barney's Point is an 

 argillaceous limestone, which readily alters on exposure to 

 water into a tenacious blue-grey mud. In this mud many 

 perfect specimens are found excellently preserved ; notably, 

 such common forms as Cardinia Listeri and C. ovalis; 

 sections of ammonites, as A. comnmnis and A. Johnstoni, 

 are common ; the sand in places is largely composed of 

 fragments of Pentacrinites. 



Frequent exposures of Lias are to be found along the coast 

 road, where the plastic nature of the rock has given rise to 

 many landslips in the past, of which a noticeable example 

 is the slipped plateau on which Garron Tower stands. After 

 every storm of rain small local slips may occur, so that in 

 places the road is often rendered impassable in winter, 

 particularly between Carnlough and Glenarm, and around 

 Garron Point. 



In White Park Bay, beds of Middle Lias occur (Ballintoy 

 beds), containing Ammonites Ilenleyi, Belemnites uvibilicatus, 

 Plicatula spinosa. Occasionally sections of the Middle Lias 

 may be found exposed along the banks of the small stream, 

 but usually the strata are obscured under surface slips. The 

 storm of 1896 stripped the sand from the shore in White Park 



