United Kingdom and Ireland
Geological Time: Jurassic Upper Jurassic Kimmeridgian
Kimmeridge Clay Formation
the raw material was collected and the specimen was extracted and photographed by
Michael Hesemann
left: view from an angle, right: apertural face
The identification is based upon:
, : Tappan, H. (1955). Foraminifera from the Arctic Slope of Alaska. Part 2, Jurassic Foraminifera. United States Geological Survey Professional Papers. 236-B: 1-124. Plate 26, Fig.