Gordon, D.P., 1988. The bryozoan families Sclerodomidae, Bifaxariidae, and Urceoliporidae and a novel type of frontal wall. New Zealand Journal of Zoology, 15: 249-290.
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Gordon, D. P.
1988
The bryozoan families Sclerodomidae, Bifaxariidae, and Urceoliporidae and a novel type of frontal wall