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Reticulofenestra bisecta

Edited by Jeremy Young on Wed, 09/03/2011 - 17:04

Reticulofenestra bisecta (Hay, Mohler and Wade, 1966) Roth, 1970 [Syracosphaera]

Description: Coccoliths medium to large size (ca 8-12µm), with central-area closed by plates on distal surface of coccolith.

Remarks:

Original description:

Syracosphaera bisecta 100132.jpgSyracosphaera bisecta 100133.jpg

3-2scissura.JPG 3-3scissura.JPG 3-5scissura.JPG 3-4scissura.JPG 3-1scissura.JPG

Synonyms: Dictyococcites bisectus (Hay, Mohler and Wade, 1966) Bukry and Percival, 1971 - alternative combination; R. scissura Hay, Mohler and Wade, 1966 - see Gartner (1971) for discussion.

Variants: R. stavensis (Levin and Joerger, 1967) Varol, 1989, Dictyococcites scrippsae Bukry and Percival, 1971. N.B. Two different taxonomic subdivisions are in use (1) Specimens <10μm = D. scrippsae, >10μm = D. bisectus; (2) Specimens <10μm = R. bisecta, >10μm R. stavensis.

Geological Time Data
Geological Time Periods: 
NN1
Eocene
Biblio Reference: 
Young, JR.  1998.  Neogene. Calcareous nannofossil biostratigraphy. :225-265.
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