Belongs within: Lepidocyclinidae.
Lepidocyclina is a Middle Eocene to Middle Miocene genus of large foraminiferans with bilocular embryonic chambers (Loeblich & Tappan 1964).
Characters (BouDagher-Fadel 2008): Test microspheric, biconvex with peripheral flange. In vertical section, numerous columns of ‘‘lateral chambers’’ (cubiculae) with cubicular lumina surrounding thin median layer. In equatorial or oblique sections, cubiculae are arcuate, hexagonal or polygonal, each with two apertures. Roof and floors of chamberlets perforate. Complete periembryonic ring of primary auxiliary and interauxiliary chambers.
<==Lepidocyclina Gümbel 1870 (Lepidocyclina)LT64 (see below for synonymy)
| i. s.: *L. (L.) mantelli (Morton 1833) [=Nummulites mantelli, *Isolepidina mantelli]LT64
| L. (L.) canelleiB-F08
| L. elephantinaMS98
| L. howchiniQ72
| L. (L.) montgomeriensisLT64
| L. (L.) mortoniC40
| L. (L.) ocalanaC40
| L. (L.) parvulaC40
|--L. (L.) arianaB-F08
|--L. (L.) mauretanicaB-F08
|--L. (L.) proteiformis Vaughan 1924B-F08, LT64 [=L. (Polylepidina) proteiformisLT64, *Polyorbitoina proteiformisLT64]
`--+--L. (L.) pustulosa (Douvillé 1917)B-F08, LT64 (see below for synonymy)
`--L. (Nephrolepidina Douvillé 1911)B-F08, LT64 [incl. Amphilepidina Douvillé 1922LT64, Triplalepidina Vaughan & Cole 1938LT64]
|--L. (*N.) marginata (Michelotti 1841)C40, LT64 [=Nummulites marginataLT64]
|--L. (N.) chaperiC40
|--L. (N.) dartoniC40
|--L. (N.) martiniC40
|--L. (N.) morganiB-F08
|--L. (N.) praemarginata (Douvillé 1908)B-F08
|--L. (N.) rutteniB-F08
|--L. (N.) sumatrensis (Brady 1875)B-F08, LT64 [=Orbitoides sumatrensisLT64, L. (*Amphilepidina) sumatrensisC40]
|--L. (N.) tournoueriB-F08 [=L. (Eulepidina) tournoueriLT64]
|--L. (N.) veracruziana (Vaughan & Cole 1938)B-F08, LT64 (see below for synonymy)
`--L. (N.) tournieriB-F08
Lepidocyclina Gümbel 1870 (Lepidocyclina)LT64 [=Isolepidina Douvillé 1915LT64; incl. Cyclosiphon Ehrenberg 1855 (nom. rej.)LT64, Isorbitoina Thalmann 1938LT64, Multicyclina Cushman 1918LT64, Neolepidina Brönnimann 1947LT64, Orbitoina van de Geyn & van der Vlerk 1935 (n. n.)LT64, Pliolepidina Douvillé 1915LT64, Pliorbitoina van de Geyn & van der Vlerk 1935LT64, Polyorbitoina van de Geyn & van der Vlerk 1935LT64]
Lepidocyclina (Lepidocyclina) pustulosa (Douvillé 1917)B-F08, LT64 [=Isolepidina pustulosaLT64, L. (Pliolepidina) pustulosaLT64, *Neolepidina pustulosaLT64; incl. Lepidocyclina (*Multicyclina) duplicata Cushman 1918LT64, C40, LT64, L. panamensisC40, L. (*Pliolepidina) tobleri Douvillé 1917LT64, L. (P.) pustulosa f. tobleriLT64, *Multilepidina tobleriLT64, *Pliorbitoina tobleriLT64, Lepidocyclina (Isolepidina) trinitatis Douvillé 1917C40, LT64, *Isorbitoina trinitatisLT64]
Lepidocyclina (Nephrolepidina) veracruziana (Vaughan & Cole 1938)B-F08, LT64 [=*Triplalepidina veracruzianaLT64, L. (Pliolepidina) veracruzianaLT64]
*Type species of generic name indicated
References
[B-F08] BouDagher-Fadel, M. K. 2008. The Cenozoic larger benthic foraminifera: the Palaeogene. Developments in Palaeontology and Stratigraphy 21: 297–418.
[C40] Cushman, J. A. 1940. Foraminifera: Their classification and economic use 3rd ed. Harvard University Press: Cambridge (Massachusetts).
[LT64] Loeblich, A. R., Jr & H. Tappan. 1964. Sarcodina: chiefly “thecamoebians” and Foraminiferida. In Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt C. Protista 2 vol. 2. The Geological Society of America and The University of Kansas Press.
[MS98] Margulis, L., & K. V. Schwartz. 1998. Five Kingdoms: An Illustrated Guide to the Phyla of Life on Earth 3rd ed. W. H. Freeman and Company: New York.
[Q72] Quilty, P. G. 1972. The biostratigraphy of the Tasmanian marine Tertiary. Papers and Proceedings of the Royal Society of Tasmania 106: 25–44.