Retesphaera diadema


Classification: non_cocco -> Dinophytes -> Thoracosphaeraceae -> Oblique wall -> Retesphaera -> Retesphaera diadema
Sister taxa: R. diadema

Taxonomy:

Citation: Retesphaera diadema Hildebrand-Habel, Willems, & Versteegh 1999
Rank: species

Catalog entries: Retesphaera diadema

Original description: Diagnosis: Monocarinate cyst characterized by reticular surfaces. The single-layered wall consists of irregularly oriented, small, idiomorphous rhombohedrons. The central body of the holotype is basically spherical. The decisive feature is a circlet-like rim of coarser crystallites framing the apical side of the test.

Type images:


Morphology: Wall structure: oblique
Archeopyle: Apical 3 plates (Streng et al. 2004)

Geological Range:
Last occurrence (top): within Maastrichtian Stage (66.04-72.05Ma, top in Maastrichtian stage). Data source: Hildebrand-Habel & Willems 2000
First occurrence (base): within Maastrichtian Stage (66.04-72.05Ma, base in Maastrichtian stage). Data source: Hildebrand-Habel & Willems 2000

References:

Hildebrand-Habel, T. & Willems, H. (2000). Distribution of calcareous dinoflagellates from the Maastrichtian to early Miocene of DSDP Site 357 (Rio Grande Rise, western South Atlantic Ocean). International Journal of Earth Sciences. 88: 694-707. gs

Hildebrand-Habel, T., Willems, H. & Versteegh, G. J. M. (1999). Variations in calcareous dinoflagellate associations from the Maastrichtian to Middle Eocene of the western South Atlantic Ocean (São Paulo Plateau, DSDP Leg 39, Site 356). Review of Palaeobotany and Palynology. 106: 57-87. gs


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Retesphaera diadema compiled by Jeremy R. Young viewed: 29-10-2020

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