Citation: Catinaster coalitus Martini & Bramlette 1963taxonomic rank: SpeciesVariants:
Catinaster rotundus de Kaenel & Bergen in de Kaenel et al. (2017) - rounded periphery
Distinguishing features: Parent taxon (Catinaster): Discoasterids with bifurcate ray tips that meet to form a basket like structure (Miocene) This taxon: Rays bifurcate to form distal rim of basket, but do not extend significantly beyond it
Catinaster with rays which bifurcate to form a distal rim, but which do not extend significantly beyond this rim. The rim continues to the proximal pole producing a basket-like body. N.B. short pseudo-rays are often formed where the tips of bifurcations meet.
Lith size: 4->9µm; Segments: 6->6; Data source notes: size from OD and illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes
Geological Range: Notes: This is the first Catinaster species to appear and is the most common. Its base is used as zonal marker for NN8 and in most other Neogene nanofossil zonaions. The last occurrence is more gradational and has not been used as a marker event. It should also be noted that is a very robust nannofossil and can easily be reworked. Last occurrence (top): within NN10 zone (8.29-9.53Ma, top in Tortonian stage). Data source: Young 1998 First occurrence (base): at base of NN8 zone (0% up, 10.9Ma, in Tortonian stage). Data source: zonal marker (see e.g. Young 1998)
Plot of occurrence data:
Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
de Kaenel, E., Bergen, J. A., Browning, E., Blair, S. A. & Boesiger, T. M. (2017). Uppermost Oligocene to Middle Miocene Discoaster and Catinaster taxonomy and stratigraphy in the circum North Atlantic Basin: Gulf of Mexico and ODP Leg 154. Journal of Nannoplankton Research. 37(2-3): 215-244. gsO
Martini, E. & Bramlette, M. N. (1963). Calcareous nannoplankton from the experimental Mohole drilling. Journal of Paleontology. 37(4): 845-855. gs
Müller, C. (1974). Calcareous nannoplankton, Leg 25 (Western Indian Ocean). Initial Reports of the Deep Sea Drilling Project. 25: 579-633. gs
Salomon, R. (1999). The Calcite Palace. Website - https://ina.tmsoc.org/galleries/CalcitePalace/index.htm. -. gs
Theodoridis, S. (1984). Calcareous nannofossil biostratigraphy of the Miocene and revision of the helicoliths and discoasters. Utrecht Micropaleontological Bulletin. 32: 1-271. gsO
Young, J. R. (1998). Neogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 225-265. gs
Catinaster coalitus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 14-10-2024
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