Calcareous dinoflagellates


Classification: non_cocco -> Dinophytes -> Calcareous dinoflagellates
Sister taxa: Calcareous dinoflagellates, Organic-walled dinoflagellates, Silicifying dinoflagellates,

Daughter taxa (blue => in age window 0-300Ma) Granddaughter taxa
Wall formed of crystals with tangential c-axes (Thoracosphara s.l.)

Wall formed of crystals with radial c-axes (Orthopithonella s.l.)

Wall formed of crystals with oblique c-axes (Obliquipithonella s.l.)

These taxa are generally accepted in the calcisphere literature, even if their affinities are not sure

Discrete Mesozoic group with regularly oblique c-axes

Described taxa included in the Farinacci catalog but not included elsewhere (mostly poorly documented taxa)



Taxonomy:

Notes & discussion: Here the classification of calcareous dinoflagellates is summarised - based mainly on papers of Streng. The most common extant species are grouped in one category for now, to make it easier to find them

See also: Mesozoic non–coccoliths- Mesozoic taxa commonly found in nannofossil preps are still dealt with in Mesozoic nanofossils;

Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): within Carnian Stage (228.35-237.00Ma, base in Carnian stage). Data source: Total of range of species in this database

References:

Elbrachter et al 2009 [sorry, not in our bibliography yet]


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Calcareous dinoflagellates compiled by Jeremy R. Young viewed: 25-11-2017

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