8 



by which to identify the species, and this, at best, can be but 

 an unsatisfactory identification. In a lew cases, in the speci- 

 mens collected, the septal sutures are shown, allowing a 

 more precise determination. The most abundant and 

 characteristic species of Goniatites in these concretions arc 

 Goniatites intutnescens ( Beyr. ) and G.lutheri (Clarke). The 

 non-u mbilicated species are rare, a single doubtful specimen 

 having been noted. Besides the Goniatites a few other 

 fossils occur in this rock. Those found are: 



Coleolus aciculum ( Hall ). 

 Styliolina fissurella (Hall). 

 Cardiola retrostriata (von Bueh). 

 hingula sjyatulata (Vanux.). 

 Chonctes lepida (Hall). 



Cardiola retrostriata (von Buch) is the only other com- 

 mon fossil, and although most of the specimens are small, 

 they show all the characteristic features. Lingula sj)atulata 

 ( Vanux.) is represented by small specimens only. This and 

 the other species are rare. 



In the shale below the Goniatite bearing layer, fossils are 

 rare. Occasionallv in the immediate neighborhood of the 

 layer, Goniatites occur, but these are usually so poorly pre- 

 served that specific determination is out of the question. 

 Cardiola retrostriata (von Buch) also occurs, though much 

 less commonly than in the concretionary layer. Lunu- 

 licardium fragile ( Hall ) is sparingly represented, and with it 

 occurs usually the minute pteropod Styliolina fissurella 

 (Hall). Coleolus aciculum (Hall) is another sparingly rep- 

 resented species, and a few Orthoceratites occasionally 

 occur. One well-preserved specimen of Orthoeeras allied to 

 0. mephisto (Clarke) was found. 



On the whole, the fauna of these beds is a very meagre one, 

 and were it not for the Goniatites, which are frequently 

 found, lying at the foot of the cliff, it might be entirely 

 overlooked. 



