Iberian Peninsula Portugal
Geological Time: Jurassic Middle Jurassic Callovian
sampled together with Brian Ottway, photographed by
View of a specimen of Spirillina tenuissima Guembel, 1862
The identification is based upon:
Copestake, P. and Johnson, B., 2014: Lower Jurassic Foraminifera from the Llanbedr (Mochras Farm) Borehole, North Wales, UK. Monograph of the Palaeontographical Society, London. Publication 641 403 pp. and 21 plates Plate 19, Fig. 15,16,20