Credit: California Academy of Sciences Geology Orbigny d', A. D. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles. vol. 7: 96-169, 245-314., available online at http://biodiversitylibrary.org/page/5753959 page(s): p. 282 n° 1 Model n° 41
Credit: California Academy of Sciences Geology Orbigny d', A. D. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles. vol. 7: 96-169, 245-314., available online at http://biodiversitylibrary.org/page/5753959 page(s): p. 282 n° 1 Model n° 41
Orbigny d', A. D. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles. vol. 7: 96-169, 245-314., available online at http://biodiversitylibrary.org/page/5753959 page(s): p. 282 n° 1 Model n° 41, pl. 15 fig. 4-5
Image source: Cushman, J.A. 1911. A Monograph of the Foraminifera of the North Pacific Ocean. Part II. Textulariidae. Bull. U.S. Nation. Mus 71: xiii+108 pp.
Scanning electron micrographs and photomicrographs of species from the northern Gulf of Cadiz continental shelf. Details about species distribution in: Mendes, I., Dias, J.A., Schönfeld, J., Ferreira, Ó., 2012. Distribution of living benthic foraminifera on the Northern Gulf of Cadiz continental shelf. Journal of Foraminiferal Research, 42(1), 18-38.