Articles | Volume 8, issue 1
J. Micropalaeontol., 8, 87–90, 1989
https://doi.org/10.1144/jm.8.1.87
J. Micropalaeontol., 8, 87–90, 1989
https://doi.org/10.1144/jm.8.1.87

  01 Jun 1989

01 Jun 1989

The type species of the genus Orbitolina D’Orbigny, 1850 (Foraminifera)

R. Schroeder1 and M. D. Simmons2 R. Schroeder and M. D. Simmons
  • 1Geologisch – Paläontologisches Institut, Universität Frankfurt, Senckenberganlage 32–34, Postfach 11 19 32, D-600 Frankfurt a. M. 11, West Germany
  • 2Stratigraphy Branch, BP Research Centre, Sunbury on Thames, Middlesex TW16 7LN, U.K

Abstract. A number of species have been suggested as type species of the genus Orbitolina d’Orbigny, 1850, notably Madreporites lenticularis Blumenbach, 1805, Orbulites concava Lamarck, 1816 and Orbitolina gigantea d’Orbigny, 1850. It is shown that the correct type species is Orbitolina gigantea, although this is in fact a species of coral. Consequently in order to preserve the concept of Orbitolina as a foraminiferal genus, we herein recommend to the ICZN the proposal of Orbulites concava as a replacement type species. This would negate the need for a major revision of orbitolinid taxonomy and allows the genus Palorbitolina Schroeder, 1963 to remain valid.