Additional Fossils from the Cambrian Rocks of Comley, Shropshire

Publisher Website
Google Scholar
Abstract
During the last 20 years a good many additions have been made to my collection from the Cambrian rocks of Comley. Some of these specimens indicate species new to the locality; others throw additional light on those previously described. An attempt is also made in this paper to clear up a number of doubtful generic references that have appeared in my previous communications. Particularly is this the case with those species that were formerly referred by me to Micmacca Matthew and Anomocare Angelin. Matthew's genus is certainly present, but some of the specimens must be put under Strenuella . Angelin's genus is not represented, and the forms so designated seem to come under Protolenus and Strenuella . Prof. P. E. Raymond (1913, p. 102) defines the family as follows:— ‘Hypoparia of small size, cephalon and pygidium subequal, free cheeks absent from the dorsal side, thorax of three segments; pygidium annulated or smooth. Lower and Middle Cambrian. Northern Europe and Eastern North America.’ He includes the following genera in the family:— Eodiscus Matthew, type species E. schucherti Matthew; Goniodiscus Raymond, type species Microdiscus lobatus Hall; Weymouthia Raymond, type species Agnostics nobilis Ford. Unfortunately, Goniodiscus is pre-occupied, having been used by Müller and Troschel in 1842 for an asteroid. I do not propose any new generic name to replace Goniodiscus , for, on analysis of the published figures of the species of the Eodiscidae, I find that in respect of Raymond's first distinction, namely, the relative lengths of the glabellae, the two groups seriously overlap, and

This publication has 16 references indexed in Scilit: