296 



CHEIKOLEPIS. 



genus Chc'iyolepis for BrachtjpJnjUum in describing Selienk'.s species, 

 and wisely restricts the application of the latter term. The 

 ^Yealden Conifer, SpJioioIepidium. Kwrianum (Dunk.),' also bears 

 a distinct resemblance to the Jurassic species ; but in both 

 tiplienolepiiium and Cheirolejiis the nature of the cones is included 

 as an important generic character in the diagnosis. In the case 

 of Phillips' BrachjphijUum setosum "we are without the important 

 evidence which cones would supply, and it must be admitted that 





Fig. b-i. — Ch(irulrp,s svtosi'^ (rinll.). 



\. From the Scarborough Museum. (Xat. size.) 



B. From the Whitby Museum (No. 2382). (N.at. size.) 



the form of the vegetative branches alone is insufficient as a guide 

 to affinity when we have to deal with such a type as that 

 rei)rcsented in Fig. .5.3. 



While admitting the impossibility of determining with cortaintj" 

 the true generic nature of the specimens of this species, wc 

 ma}" adopt Chfirolepis as a generic designation in preference to 



Se-ffurd (95), p. 200, pis. xvii. and xviii. 



