Peel J.S. (2020). Muscle scars, mode of life and systematics of Pollicina (Mollusca) from the Ordovician of Baltica. Estonian Journal of Earth Sciences. 69(1): 20-36.
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Peel J.S.
2020
Muscle scars, mode of life and systematics of Pollicina (Mollusca) from the Ordovician of Baltica