United Kingdom and Ireland UK
Geological Time: Jurassic Upper Jurassic Kimmeridgian
Kimmeridge Clay Formation
the image is published in Lloyd 1959, The foraminiferal faunas of the type Kimmeridgian. Thesis.
The identification is based upon:
, : Schwager, C. (1865). Beitrag zur Kenntniss der mikroskopischen Fauna jurassischer Schichten. Württembergische naturwissenschaftliche Jahreshefte. 21 (1): 82-151. Plate , Fig.
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