Parkinson, J. 1922 (1930). Outline of Oryctology. An introduction to the study of fossil organic remains especially of those found in the British strata. Natalli, London, and Combe & Son, Leicester: i-viii, 1-349, 10 pls (1st edition 1922, 2nd edition 1930)(sponges pp. 34-65).
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Parkinson, J.
1922
Outline of Oryctology. An introduction to the study of fossil organic remains especially of those found in the British strata
