Helicosphaera paleocarteri Theodoridis, 1984
Helicolith having a Type III (Helicosphaera carteri type) blanket and an expanded flange termination and a central area with two pores that are placed off the axial suture.
Helicosphaera paleocarteri differs from Helicosphaera carteri (Wallich, 1877) Kamptner (1954) by having two pores placed off the axial suture whereas in the latter both pores are on the axial suture.
Kamptner, E., (1954): Untersuchungen über den Feinbau der Coccolithen. Anzeiger. - Österreichische Akademie der Wissenschaften. Mathematische-Naturwissenschafliche Klasse. Wien. 87: 152-158.
Theodoridis, S., (1984): Calcareous nannofossil biostratigraphy of the Miocene and revision of the helicoliths and discoasters. - Utrecht Micropaleontological Bulletin. 32: 1-271.
Wallich, G. C., (1877): Observations on the coccosphere. - Annals and Magazine of Natural History. 19: 342-350.
Helicosphaera paleocarteri
Theodoridis, 1984
Middle Miocene
Giammoia 2, Sicily