132 



THE HABITAT OF THE EURYPTEEIDA 



'''■'iiiii uilii'iiii'' ''s-C '. 



3PRE STANE 



£asj caibn 



tfi^lS 



.i'«»»MVW« , . , l , V» , 'iiiAVVv 



'/t, m i. Le 



Fig. 12. Sketch Map Giving Outcrops of the Wenlock of the Pentland 



Hills, Scotland 

 (After Henderson and Brown) 



pared with that made by Laurie at the time when he described the 

 eurypterid fauna from these beds. He says: "The rock in which the 

 Eurypterids are preserved is an irregularly fissile fine-grained sand- 

 stone, containing a considerable amount of carbonaceous matter dis- 



