Opisthobranch gastropods are rare in Mesozoic deposits of Antarctica. The first documented occurrence of opisthobranchs from this continent is from Cretaceous shallow-marine deposits of the James Ross Basin, Antarctic Peninsula, where Wilckens (1910, p. 95–96, pl. 4, fig. 19) described the minute ringiculid Cinulia sp., based on five specimens from two localities on Snow Hill Island. No further work has been done on the Snow Hill Island species. The next mention of Antarctic Cretaceous opisthobranchs was by Zinsmeister et al. (1989, p. 733, fig. 2, p. 734, fig. 3), who cited the occurrence of the ringiculid “...
A NEW, LARGE ACTEONID GASTROPOD (MOLLUSCA) FROM THE LATEST CRETACEOUS OF ANTARCTICA
JEFFREY D. STILWELL, WILLIAM J. ZINSMEISTER; A NEW, LARGE ACTEONID GASTROPOD (MOLLUSCA) FROM THE LATEST CRETACEOUS OF ANTARCTICA. Journal of Paleontology ; 76 (6): 1102–1105. doi: https://doi.org/10.1666/0022-3360(2002)076<1102:ANLAGM>2.0.CO;2
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