Citation: Paleozoic putative nannofossils) Rank: FamilyBasionym: Paleozoic putative nannofossilsSynonyms: Archaeorhabdulites Deflandre (1970) Archaeorhabdulites quadratus Deflandre (1970) Archaeorhabdulites strangulatus Deflandre (1970) Coccolithites antiquus Deflandre (1970) Coccolithites fallax Deflandre (1970) Coccolithites impletus Deflandre (1970) Coccolithites pontiferus Deflandre (1970) Eocricosphaera Deflandre (1970) Eocricosphaera chennauxi Deflandre (1970) Eocricosphaera perruchei Deflandre (1970) Paleococcolithus Gartner & Gentile (1972) Paleococcolithus missouriensis Gartner & Gentile (1972) Palmicricothus Deflandre (1970) Palmicricothus magnus Deflandre (1970)Taxonomic discussion: Various putative Palaeozoic nannofossils have been described. We do not regard any of them as convincing and certainly not as evidence of ancient calcifying haptophytes. They're listed here for reference. A further 186 species were described by Bei Jing (1999 Proterozoic and Palaeozoic Coccolith Fossils in China, China Ocean Press) these are clearly diagenetic artefacts and have not been catalogued.
Geological Range: Last occurrence (top): within Permian Period (252.16-298.88Ma, top in stage). Data source: Total of range of species in this database First occurrence (base): within Cambrian Period (485.37-541.00Ma, base in Fortunian stage). Data source: Total of range of species in this database
References:
Deflandre, G. (1970). Présence de nannofossiles calcaires (coccolithes et incertae sedis) dans le Siluro-dévonien d'Afrique du Nord. Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences, Paris. 270: 2916-2921. gsVO
Gartner, S. & Gentile, R. (1972). Problematic Pennsylvanian coccoliths from Missouri. Micropaleontology. 18(4): 401-404. gs
Pirini Radrizzani, C. (1971). Coccoliths from the Permian deposits of eastern Turkey. In, Farinacci, A. (ed.) Proceedings of the Second Planktonic Conference Roma 1970. Edizioni Tecnoscienza, Rome 2: 993-1001. gsO
Shumenko, S. I. (2001). To the study of Early Mesozoic, Palaeozoic, and Precambrian nannofossils. International Journal on Algae. 3: 90-94. gs
Palaeozoic nannofossils compiled by Jeremy R. Young viewed: 2-4-2023
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