Lingulina carinata d'Orbigny 1826

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. 257 n° 1 Model n° 26

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. 257 n° 1 Model n° 26

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. 257 n° 1 Model n° 26

Image source: Cushman, J.A. 1923. The Foraminifera of the Atlantic Ocean. Part 4. Lagenidae. Bull. U.S. Natl. Mus. 104.

Image source: Cushman, J.A. 1913. A Monograph of the Foraminifera of the North Pacific Ocean. Part III. Lagenidae. Bull. U.S. Nation. Mus 71: ix+125 pp.+47 pls.