Cooper, G. A. (1972). Homeomorphy in recent deep-sea brachiopods. Smithsonian Contributions to Paleobiology. 11:1–25, fig. 1–5, pl. 1–4.
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Cooper, G. A.
1972
Homeomorphy in recent deep-sea brachiopods
Smithsonian Contributions to Paleobiology
11:1–25, fig. 1–5, pl. 1–4
Publication
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A collection of brachiopods from the Baja California Abyssal Plain forms a deep-sea assemblage unusual in that it contains three genera that are unrelated but externally almost identical; i.e., they .are homeomorphs. One is Neorhynchia, an impunctate rhynchonellid; the second, a punctate terebratulid with short loop, is called Abyssothyris; and the third is referred to a new genus, Notorygmia, related to Macandrevia. A discussion of homeomorphy is followed by the systematics of the genera and species involved.
