Oelandia

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For Öland, see Öland.

Oelandia Temporal range: Middle Cambrian PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Unranked subphylum:	incertae sedis
Class:	†Helcionelloida
Order:	†Helcionelliformes
Superfamily:	†Helcionelloidea
Genus:	†Oelandia Westergård, 1936

Oelandia is an extinct genus of basal molluscs of the family helcionellid from the Middle Cambrian of Sweden, China and North America.^[1] It has a small, upwards-pointing anterior snorkel with a closed end. It bears pronounced concentric ribbing around its strongly coiled exogastric shell.^[1]

References

↑ 1.0 1.1 Peel, J. S. (1991). "Functional Morphology of the Class Helcionelloida Nov., and the Early Evolution of the Mollusca". In Simonetta, A. M.; Conway Morris, S. The Early Evolution of Metazoa and the Significance of Problematic Taxa. Cambridge U. Pr. pp. 157–177. ISBN 978-0-521-40242-2.

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