Watznaueria moshkovitzii

Watznaueria moshkovitzii Varol & Bowman 2019

Very large species of Watznaueria (> 13.0 μm) having a closed central area. The entire species is highly birefringent (first-order yellow to red-colored birefringence).

This subcircular-to-broadly elliptical species has a distinctly elliptical, closed central area. The width of the central area is often narrower than the width of the pelaga (including the tube cycle and shields). It is very
highly birefringent and displays first-order yellow-to-red-coloured birefringence.

Watznaueria moshkovitzii is easily distinguished from any other species of Watznaueria by its huge size.
Bukry (1973f) introduced Watznaueria manivitiae as a substitute for Coccolithus deflandrei Manivit (1966), because Watznaueria deflandrei (Noël,1965) Reinhardt,1971 (ex Actinosphaera) had already been transferred to Watznaueria. Large circular forms are commonly and correctly assigned to Cyclagelosphaera deflandrei (Manivit 1966) Roth 1973. In this case, the substitute Watznaueria manivitiae has no holotype (or shares the same holotype with Cyclagelosphaera deflandrei) and is superfluous.

Bukry, D. 1973f. Phytoplankton stratigraphy, Central Pacific Ocean, Deep Sea Drilling Project Leg 17. Initial Reports of the Deep Sea Drilling Project. 17: 871-889.

Manivit, H. 1966. Sur quelques coccolithes nouveaux du Néocomien. Compte Rendu Sommaire des Séances de la Société Géologique de France. 7: 267-268.

Noël, D. 1965. Sur les Coccolithes du Jurassique Européen et d'Afrique du Nord. Essai de classification des coccolithes fossiles. Éditions du Centre National de la Recherche Scientifique, Paris. 1-129.

Reinhardt, P. 1971. Synopsis der Gattungen und Arten der mesozoischen Coccolithen und anderer kalkiger Nannofossilien. Teil III. – Freiberger Forschungshefte. C267: 19–41.

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.

Varol, O. & Bowman, A.R. 2019. Taxonomic revision of selected Late Jurassic (Tithonian) calcareous nannofossils and the application of mobile mounting. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 291/1 (2019): 1–23