Some new genera and species of Strophomenacea from the Upper Ordovician of Shropshire. Memoirs of the Manchester Literary and Philosophical Society, 73 1929: pp. 33-65. [Zoological Record Volume 67]
Some new genera and species of Strophomenacea from the Upper Ordovician of Shropshire. Memoirs of the Manchester Literary and Philosophical Society, 73 1929: pp. 33-65. [Zoological Record Volume 66]