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Bisidmonea tetragona (Lamouroux, 1821)
Bisidmonea tetragona is found from the Jurassic of France. The specimen illustrated is Bisidmonea antiqua d'Orbigny, 1853 from the Canu collection, Paris. This species is a junior synonym of B. tetragona. Thanks to Dr Paul Taylor for the images.
Original description: Spiropora tetragona Lamouroux, 1821
Locality: Jurassic Bathonian-Callovian, France.
Type specimen:
Modified on 29/10/2014
This URL is http://bryozoa.net/cyclostomata/entalophoridae/bisidmonea_tetragona.html