Author:
Howell B. F.,Stubblefield C. J.
Abstract
AbstractFossils collected during the past sixty years from the uppermost division of the approximately 2,000 ft. thick Llanberis Slates have been re-examined. All but one fossil came from the famous Penrhyn Quarries at Bethesda, Caernarvonshire. The fauna is described as containingPseudatops viola(H. Woodward),Eodiscus sp., cf. Protolenus howleyi(Walcott),Hyolithes cf. hathewayiG. F. Matthew,H. sp., and a fragmentary crustacean. The last offers no evidence of age but the remainder are considered to indicate a high Lower Cambrian horizon. Illustrations of some of these fossils are given for the first time. TheHyolithesis interpreted as carrying a pair of fin-like skeletal outgrowths and the morphological significance of these is discussed in a statement which comments on the obscure systematic position of the Hyolithidae.
Publisher
Cambridge University Press (CUP)
Reference39 articles.
1. Lake P. , 1940. A monograph of British Cambrian Trilobites, p. xii
2. Lake P. , 1932. A monograph of British Cambrian Trilobites, p. vii
3. Brief Notes on the Eodiscids I, Their Classification with a Description of a New Species and a New Variety;Kobayashi;Proc. Imp. Acad. Tokyo,1943
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