Alwyn Williams

1931

• Evolution of the shell structure of articulate brachiopods
• Lower Ordovician Brachiopoda from the Tourmakeady limestone, Co. Mayo, Ireland
• Shell structure of the Craniacea and othercalcareous inarticulate Brachiopoda
• The Barr and Lower Ardmillan series (Caradoc) of the Girvan District, South-West Ayrshire, with descriptions of the brachiopoda
• The Caradocian brachiopod faunas of the Bala district, Merionethshire
• The secretion and structural evolution of the shell of Thecipideidine brachiopods