A Monograph of the Polyzoa (Bryozoa) of the Red Chalk of Hunstanton

Abstract

It is not my intention in this monograph to discuss any of the stratigraphical questions raised by authors who have written about the Red Chalk of Hunstanton. I have to deal with one group of fossils only; but, before entering on my investigations, it was necessary to make myself familiar with the views of others, and more especially with the palaeontological evidence afforded by the study of the fossils from the various zones of the Chalk. One source of information has been, however, more helpful to me than all the others. When compiling material for my British-Association Reports on Fossil Polyzoa, I was allowed to examine all the type series in the Museum of Practical Geology, from the Cambrian to the Upper Chalk; and recently (September 1889) I have re-examined, for the purpose of this and another paper on the Polyzoa of the Upper and the Lower Greensands (Bibliographic List, 21; see page 458), all the Cretaceous forms mentioned in the Catalogue of that Museum (Bibliogr. 12). Besides the examination of these forms Mr. Alfred Bell has placed in my hand for study and description a fine series of Polyzoa preserved on flints, as well as free examples, from the Upper Chalk at Chatham. Thanks to the kindness shown towards me by Prof. Judd, F.R.S., and Dr. Pergens, of Belgium, I have been enabled to study the Polyzoa of the Faxoe Limestone and Maastricht Beds, by the gift of beautiful examples derived from these typical horizons of Cretaceous Polyzoa. In