EOCKS OF SOUTH DEVON. 509 



pointed out, they irregularly overlie aphanites aud tuffs. Beds of 

 concretionary limestone-nodules occur in the Saltern -Cove slates 

 and mudstones ; these are the indications of the knubbly Gonia- 

 tite-limestones or Kr amen zel- Stein and of the KnoUen-Kalk. 



Wherever we find the Cypridinen-Schiefer in the vicinity of fine, 

 crystalline, grey limestone, we should expect to meet with a repre- 

 sentation of the Goniatite-beds ; accordingly we find the Usham 

 limestone most irregularly bounded by red limestone, much crushed, 

 with calc-spar veins and filaments, distributed so as to suggest 

 Goniatites or Orthoceras distorted beyond recognition ; and further 

 from the grey limestone concretionary limestone beds occur. 



The Upper-Devonian slates of Anstey's Small Cove and Ilsham are 

 probably faulted against the massive limestone of Anstey's Large Cove. 



The red slates of Petitor combe contain thin bands and lenticles 

 of limestone at their junction with the limestone on the south and 

 north. In one spot on the north side I have obtained Goniatites 

 Sagittarius and several specimens of Goniatites on the south side *. 



The red slates of Barton have as yet yielded no fossils ; in one or 

 two places, where their junction with the massive limestone of 

 Barton can be seen, they are associated with red limestone beds. 



Due north of Combe-Cellars, on the north side of the River 

 Teign, greenish-grey argillaceous slates, with bufi^, powdery nodules 

 and lenticles of decomposed limestone, pass down into similar 

 slates with lenticles and nodules of limestones, very compact and 

 distributed in beds, as in the Saltern-Cove Upper-Devonian slates. 

 ISQBi a small patch of Trias, by the river, red slates crop out con- 

 taining similar nodules of brown powder; in their vicinity I discovered 

 two Cephalopods on the beach, which had been evidently washed out 

 of rock, they were sent to Dr. Kayser, who says : — " The smaller 

 Goniatite (or Olymenia) is unidentifiable. The larger specimen is 

 probably a Goniatite, but of a species unknown to me." In some 

 of the powdery nodules in the slates I detected bivalve impressions, 

 resembling Cardiola retrostriata. I sent these to Prof. Gosselet, 

 who returned them with the following identifications, at the same 

 time recommending me to submit them to Dr. Kayser : — 



Gasteropod fragment. Encrinite fragment. 



Sanrjuinolaria elliptica ? 



Cardiola (very near to retrostriata ; ornaments efi'aced). 



Chonetes. 



Goniatite or Chjmenia. 



In these fragments Dr. Kayser identified : — 



Cardiola retrostria ta. 



A small Ortliis or Chonetes. 



These beds are the Kuollen-Kalk. The concretionary limestone- 

 beds are similar to those on the margin of the Ilsham limestone 



* The Goniatites were discovered after tliis paper had been sent in. 



