Distinguishing features:
Parent taxon (Scrippsiella): Cysts with tangential wall structure and compound archaeopyles. Wall formed of largish non-intelocking elements each with a spine
This taxon: Like S. acuminata but spines longer and sutures between elements more complex
Taxonomy:
Catalog entries: D. crucifera * , R. gerenus * , D. regalis *
Distinguishing features:
Parent taxon (Scrippsiella): Cysts with tangential wall structure and compound archaeopyles. Wall formed of largish non-intelocking elements each with a spine
This taxon: Like S. acuminata but spines longer and sutures between elements more complex
Morphology:
Archeopyle: ?Mesoepicystal (Streng et al. 2004)
Geological Range:
Last occurrence (top): Extant. Data source: Zonneveld et al. 2005
First occurrence (base): within Early Miocene Sub-Epoch (15.97-23.03Ma, base in Aquitanian stage). Data source: Streng et al. 2004
Gaarder, K. R. & Heimdal, B. R (1973). Light and scanning electron microscope observations on Rhabdothorax regale (Gaarder) Gaarder nov. comb. Norwegian Journal of Botany. 20: 89-97. gs Gaarder, K. R. (1954). Coccolithineae, Silicoflagellatae, Pterospermataceae and other forms from the Michael Sars North Atlantic Deep Sea Expedition 1910. Report on the Scientific Results of the ‘‘Michael Sars'' North Atlantic Deep Sea Expedition 1910. 2: 1-20. gs Janofske, D. (2000). Scrippsiella trochoidea and Scrippsiella regalis, nov. comb. (Peridiniales, Dinophyceae): a comparison. Journal of Phycology. 36: 178-189. gs Streng, M., Hildebrand-Habel, T. & Willems, H. (2004). Longterm evolution of calcareous dinoflagellate associations since the Late Cretaceous. Journal of Nannoplankton Research. 26(1): 13-46. gs Streng, M., Hildebrand-Habel, T. & Willems, H. (2004). A proposed classification of archeopyle types in calcareous dinoflagellate cysts. Journal of Paleontology. 78(3): 456-483. gs Zonneveld, K. A. F., Meier, K. J. S., Esper, O., Siggelkow, D., Wendler, I. & Willems, H. (2005). The (palaeo-) environmental significance of modern calcareous dinoflagellate cysts: a review. Paläontologische Zeitschrift. 79(1): 61-77. gsReferences:
Scrippsiella regalis compiled by Jeremy R. Young viewed: 13-10-2024
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