16
1
January
219
221
WALTER, B., POWELL, H. P. 1973. Exceptional preservation in cyclostome Bryozoa from the Middle Lias of Northamptonshire. Palaeontology, 16, 1, 219–221.
B. Walter and H. P. Powell The genus Cisternifera Walford 1894 is shown to be based on a misinterpretation of Mesenteripora wrighti Haime 1854, with a calcified terminal membrane. The Palaeontological Association (Free Access)