446 HIND : CARBOXIFEROUS ROCKS OF THE PENNINE SYSTEM. 
He considers the Main Limestone of Weardale and the north 
as the equivalent of the top of the Mountain Limestone of Derby- 
shire, and shows the shales of Derbyshire (the Pendleside series) as 
being altogether above the Yoredale series. 
In company with Mr. J. Barker, of Frosterley, I examined the 
Carboniferous succession of Weardale wliere quarries extending 
for miles on both sides of the Wear are opened in the Main Limestone, 
and streams and the Wear show sections from the Millstone Grit to 
the Four-fathom Limestone. Further west, near Wearhead, the 
Lower Limestones and intervening beds are exposed down to the 
Scar Limestone, but unfortunately I had no opportunity to examine 
these beds thoroughly, and they are not quarried to any extent. 
Below the Fell Top Limestones, in which I got no fossils, the 
sandstones and gannisters were full of plant remains. 
The Little Limestone is 7 feet thick, and the following section 
yielded the fossils enumerated below : - 
A Bed of Quartzose Chonetes Laguessiana, Productus longispinus. 
Sandstone above P. muricatus, P. semireticulatus, Spirifer 
Little Limestone, ovalis, Orthotetes crenistria, Edmondia 
Wolsingham. sulcata, Lithodomus lingualis, Bellerophon 
(cast), Naticopsis (large cast), Phillipsia 
sp. (common). 
Pattinsons Sill Sand- 
stone, 12 feet. 
Shale, 24 feet. Full Athyris ambigua, Chonetes Laguessiana, 
of round black con- Rhynchonella trilatera, Productus semi- 
cretions at base. reticulatus, Spirifera glabra, Sp. ovalis, Sp. 
trigonalis, Spiriferina octoplicata, Cypri- 
car delta annoe, C. rectangular is, Bellerophon 
Urei, Orthoceras Morrisianum, Zaphrentis 
sp., Crinoid -stems. 
Little Limestone, 7 ft. Chaetetes radians, Syringopora geniculata, 
Cyathophyllum sp. Productus longispinus. 
Tooth of Cochliodus. 
High and Low Coal 
Sills. 
