Classification of the genus Birgeria

G. †Birgeria Stensiö 1919
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Birgeria americana Romano et al. 2017
Birgeria costata Münster 1839
Birgeria groenlandica Stensiö 1932
Birgeria gronlandica Stensiö 1932
Birgeria liui Jin 2001
Birgeria mougeoti Agassiz 1844
Birgeria nielseni Lehman 1948
Birgeria velox Jordan 1907
Invalid names: Xenesthes Jordan 1907 [replaced]