MSBIAS source details
Stewart, R. B. (1927). Gabb's California fossil type gastropods. Proceedings of the Academy of Natural Sciences of Philadelphia. 78: 287–447, pls. 20–32.
137978
Stewart, R. B.
1927
Gabb's California fossil type gastropods.
Proceedings of the Academy of Natural Sciences of Philadelphia
78: 287–447, pls. 20–32.
Publication
published 3 January 1927; for year 1926
Available for editors 
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2013-01-12 18:30:12Z
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Nucella Röding, 1798 (subsequent type designation)