Dinoflagellate with siliceous internal skeleton formed of two star-like bodies
| Daughter taxa (time control age-window is: 0-800Ma) | Granddaughter taxa | ||||
| | | | Actiniscus Dinoflagellate with siliceous internal skeleton formed of two star-like bodies | |
Taxonomy:
Catalog entries: Silicifying dinoflagellates [no catalog entry yet]
Morphology:
Size:
Geological Range:
Last occurrence (top): Extant. Data source: Total of range of species in this database
First occurrence (base): within Paleocene Epoch (55.96-66.04Ma, base in Danian stage). Data source: Dumitrica 1986
Missing or ambiguous references: Dumitrica 1986; References:
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Silicifying dinoflagellates compiled by Jeremy R. Young viewed: 6-7-2022
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=20452 Go to Archive.is to create a permanent copy of this page - citation notes |
Comments
(2)
I will look for the original photos whenever I return to Argentina.
According to Rai et al. 2008. Indian Journal of Marine Sciences, 37: 430-434; they occur from Late Eocene to Recent, beeing more common in the Late Neogene to Recent. There is also another nice paper: Dumitrica, 1973. CENOZOIC ENDOSKELETAL DINOFLAGELLATES IN SOUTHWESTERN PACIFIC
SEDIMENTS CORED DURING LEG 21 OF THE DSDP. In Initial Reports of the Deeps Sea Drilling Project, 21: 819-835.
Ah yes I had not looked at the Dumitrica paper before butI see now that it is a very useful review - i will aim to put the info into Nannotax sometime, for now I will add a reference to it.
thanks
Jeremy
Regarding the fossil record, I found them in Miocene samples from DSDP site 329. I know these images are bad, I´m taking them from a PPT Presentation, but I have the original ones somewhere. And also the slides.
nice - that is clearly Actiniscus, if you get better images I will put them on the page properly. It may well have a documented fossil record, I have not looked at the literature on these forms in any depth.
Jeremy