United Kingdom and Ireland UK
Geological Time: Jurassic Upper Jurassic Kimmeridgian
Kimmeridge Clay Formation
The raw material was collected by Dr. Steve Etches and sent to us by Chris Webb. Specimens were picked and photographed by
Forma 2 with thickened and raised sutures
The identification is based upon:
, : Fichtel, L.v.; Moll, J.P.C.. (1798). Testacea microscopia, aliaque minuta ex generibus Argonauta et Nautilus, ad naturam delineata et descripta. A. Pichler, Wien. xii + 123 pp., 24 pl. Plate , Fig.