NOTES AND QUERIS. 



75 



Leptana laevigata, Strophomena pecten, Atry pa reticularis, Rhynchonella furcata, 

 Petraia Una. The only fossil that I am aware of having been found in the 

 Pentamerus limestone, in this locality, is Pentamerus undatus ; it is a very 

 thin band here, and only to be observed by careful search ; it lies about the 

 middle of the section. From the Caradoc sandstone at the further end of the 

 section, some very fine and perfect Trinucleus concentricus have been observed ; 

 several heads of Ampyx pinnatus, and one entire specimen; fragments of Remo- 

 pleurides radians, Blames Davisii, Calymene Bhimenbachii, a new Baphistoma, 

 Or t his elegant ula and a new fossil allied to Siphonetreta. At the top of the second 

 meadow above this place again cross the stream, at a spot where a pole hung by 

 a chain is suspended, and on the side of a section of Caradoc sandstone, a new 

 fossil Sphcerospongia hospitalis may be readily observed, as the marks of 

 hammers show clearly the exact situation in the cliff where they are to be found ; 

 and besides this new fossil, many others belonging to this formation are there 

 to be procured. Continue up the stream to Longville Common, where a 

 quantity of loose stones, of a greenish olive and yellowish brown colour have 

 been thrown down from several old quarries above, belonging to the middle 

 Caradoc formation. These stones here are rather barren ; still some good speci- 

 mens of Modiolopsis orbicularis, Bellerophon bilobatus, B. acutus, Strophomena 

 expansus, and several species of Orthis may be procured. At the further end of 

 the common, cross the river by the stepping-stones, and immediately over the 

 turnpike-road leading to Bishop's Castle, is a large quarry of Bala limestone, 

 the beds of which are all pitched up perpendicular, owing to several large faults 

 in the neighbourhood. The stone is very hard, of a light blue colour, and much 

 used for road-purposes ; few fossils have been obtained, being here a rather 

 barren rock ; but Mr. Salter, Palaeontologist of the Geological Survey, found 

 a short time ago a new Lingula, which may be obtained in abundance ; small 

 portions of Diplograpsus pristis, some very large Stropho mena grandis, with 

 ather organisms are to be found. The lower members of the Caradoc sandstone 

 lie conformable to it on the lower side of the quarry, and some of the beds are 

 very rich in organic remains ; the best beds are about half way up the bank, 

 m& may easily be known by the hollows in the side, where the right strata 

 lave been worked, the stone is of a light brown colour, and of a tough sandy 

 3haracter. A sharp chissel-shaped hammer is the best for these beds. Some 

 oerfect Trinucleus concentricus have been observed here, together with a new 

 dsaphus ; several other Trilobites, which I think are not described ; some very 

 Deautiful Fenestellce, Beyrichia complicata, and several fossil shells. These beds 

 vould probably yield several new organisms, if a careful search were made, as 

 utherto they have received but very cursory inspection from geologists. 



About a mile and a half higher up the road, is a hill called the " Broken 

 Stones," the lower part of which is composed of the Longmynd or Bottom- 

 rocks; and the top of Caradoc sandstone, very poor in fossils. All the rocks 

 lere are very much pitched about in consequence of numerous faults. 



Prom the Bala limestone to the Wenlock shale, which are about two miles 

 apart, the road, with the exception just mentioned, passes through the lower' 

 aeds of the Longmynd rocks, from which no fossils have yet been obtained. 



After passing the Wenlock shale, in which no sections are to be seen, the 

 •oad again passes through the Caradoc sandstone, which continues to the Marsh 

 3rook ; on the sides are several quarries full of the general remains peculiar to 

 "his formation. The most prolific section is in the private drive, close to Marsh 

 Brook Station through the coppice to Minton, where a large proportion of 

 Daradoc fossils are to be procured. The following are some of them that have 

 )een obtained there: — Tentaculites anglicus, Phacops conophthalmiis, Homalonotus 

 bisulcatus, Trinucleus concentricus, crinoid plates, species of Fenestella, Nebuli- 

 wra lens, Orthis zmguis, Orthis elegantula, Orthis vespertilio, Strophomena 



