Reticulofenestra

Reticulojenestra caucasica Hay, Mohler & Wade, 1966

Apertapetra Hay, Mohler & Wade, 1966

Dictyococcites Black 1967

Stradnerius Haq, 1968

Crenalithus Roth, 1973

Elliptical to circular placolith having birefringent unicycle distal and proximal shields and a tube cycle. Adverse preservational conditions often remove the non-birefringent central mesh.

The species of this genus are primarily identified based on their overall size sizes and the ratio of the pelaga to the central area.

Elliptical Groups

Reticulofenestra gelida group

• Reticulofenestra asafis Varol, in prep.
• Reticulofenestra clemencesalleyae Varol, in prep.
• Reticulofenestra gelida (Geitzenauer in Geitzenauer & Huddlestun, 1972) Backman, 1978
• Reticulofenestra hesslandii (Haq, 1966) Roth, 1970
• Reticulofenestra subrotunda Varol, in prep.

Reticulofenestra pseudoumbilicus group

• Reticulofenestra umbilicus (Levin, 1965) Martini & Ritzkowski, 1968
• Reticulofenestra pelycomorphus (Reinhardt, 1966) Varol, n. comb.
• Reticulofenestra pseudoumbilicus (Gartner, 1967) Gartner, 1969
• Reticulofenestra caucasica Hay, Mohler & Wade,1966
• Reticulofenestra danica (Black,1967) Roth, 1970
• Reticulofenestra ampliumbilicus Theodoridis, 1984
• Reticulofenestra dictyoda (Deflandre & Fert, 1954) Stradner in Stradner & Edwards, 1968
• Reticulofenestra simillimus (Deflandre & Fert, 1954) Varol, n. comb.

Reticulofenestra pseudogammation Group

• Reticulofenestra hillae Bukry & Percival, 1971
• Reticulofenestra lata (Maiorano, 2006) Varol, amended.
• Reticulofenestra primitiva Gheta, 1982
• Reticulofenestra pseudogammation (Bouché, 1962) Varol, n. comb.
• Reticulofenestra asanoi Sato & Takayama (1992)

Circular Group

Reticulofenestra bukryi group

• Reticulofenestra bukryi (Wise, 1973) Varol, n. comb.
• Reticulofenestra cruxii Varol, in prep.
• Reticulofenestra pospichalii de Kaenel & Bergen in Boesiger et al., 2017
• Reticulofenestra rotaria Theodoridis, 1984
• Reticulofenestra rupeliensis (Müller, 1970) Varol, n. comb.
• Reticulofenestra zancleana di Stefano & Sturiale, 2010

It is distinguished from Obturolithus Varol, in prep. and Cribrocentrum by lacking birefringent central mesh. It further differs from Obturolithus by lack of distal plug.

It is differentiated from Cyclicargolithus Bukry (1971) by being elliptical and/or having a larger central opening.

Backman, J., (1978): Late Miocene - Early Pliocene nannofossil biochronology and biogeography in the Vera Basin, SE Spain. - Stockholm Contributions in Geology. 32: 93-114.

Black, M., (1967): New names for some coccolith taxa. - Proceedings of the Geological Society of London. 1640: 139-145.

Bukry, D., (1971): Cenozoic calcareous nannofossils from the Pacific Ocean. - San Diego Society of Natural History Transactions. 16: 303-327.

Geitzenauer, K. R. & Huddlestun, P., (1972): An upper-Pliocene-Pleistocene calcareous nannoplankton flora from a subantarctic Pacific deep-sea core. - Micropaleontology. 18(4): 405-409.

Haq, B. U., (1966): Electron microscope studies on some upper Eocene calcareous nannoplankton from Syria. - Stockholm Contributions in Geology. 15: 23-37.

Haq, B. U., (1968): Studies on upper Eocene calcareous nannoplankton from NW Germany. Stockholm Contributions in Geology. 18: 13-74.

Hay, W. W., Mohler, H. P. & Wade, M. E., (1966): Calcareous nannofossils from Nal'chik (northwest Caucasus). - Eclogae Geologicae Helvetiae. 59: 379-399.

Roth, P. H., (1970): Oligocene calcareous nannoplankton biostratigraphy. - Eclogae Geologicae Helvetiae. 63: 799-881.

Roth, P. H., (1973): Calcareous nannofossils: Leg 17 of the Deep Sea Drilling Project. - Initial Reports of the Deep Sea Drilling Project. 17: 695-795.