Johnston, P. A. (1991). Systematics and ontogeny of a new bivalve, Umburra cinefacta, from the Silurian of Australia: Implications for pteriomorphian evolution. Alcheringa. 15(4):293–319.
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Johnston, P. A.
1991
Systematics and ontogeny of a new bivalve, Umburra cinefacta, from the Silurian of Australia: Implications for pteriomorphian evolution