406 ME. H. BOLTON, F.B.S.E., ON [Feb., 1904 



Amphibia. 



Hylonomus Wildi (A. S. Woodward). 



The collections of Mr. George Wild from the " Soapstone 

 Bed '' over the Mountain Four Feet of Trawden, near Colne, 

 contain microsaurian remains of considerable interest. 

 These, first recognised as new by Mr. John Ward, of 

 Longton, were afterwards described by Dr. A. Smith 

 Woodward. 



They are interesting, in so much that the family to which 



the species belonged had not hitherto occurred in Europe, 



although known from the coal measures of JSTova Scotia. 



The specimen is in the Manchester Museum. (W. 1222, 



e coll. Wild.) 



Microsaurian remains. 



The Wild collection contains, in addition to the species 

 mentioned, a specimen (W1130) from the "Soapstone 

 Bed " over the Mountain Four Feet of Trawden, near Colne, 

 which shows what is evidently the under portion of a small 

 amphibian skull, as yet undescribed. 



Range in Time. 



An examination of the range in time of the various groups 

 of fossils presents an interesting study, and yields valuable 

 results. It will be noted by reference to the range table 

 appended to this paper that fossils of any kind are scanty 

 until the shales over the Gannister mine are reached. 



The shales below and above the First coal have yielded 

 but four species, three of which are moUusca, and one 

 brachiopod. Of these four, two, Lingula mytiloides and 

 Posidoniella minor, are common also to the millstone grit 

 series below. 



The shales over the Bassey or Salts Mine next in order 

 have yielded Spirorbis pusillus, three species of Carbonicola, 

 and an unknown species of Estheria. 



