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Comments (30)
hi my dear friend
please introduce me a reference or definition for sister,daughter and other terms relate them?
Kurosh
We are using these terms as indicators of relative taxonomic position. So for example all the species inside a genus can be described as daughter taxa of that genus and they are sisters of each other. The whole database is organised hierarchically so it is quite convenient to use these sort of terms.
Jeremy
hi prof
I`m also as my teacher
That's great,thanks.
hi again prof
And what a bout daughter and granddaughter?
Kurosh
Sorry if this is confusing - there is nothing really ver technical about this we are just using the terms to indicate relative position in the classification, as used on the site. So if we consider the family Rhabdospheraecae its daughter taxa are are all the genera within it -Acanthoica, Algirosphara etc. and its granddaughter taxa are all the species within it - Acanthoica acanthifera, Acanthoica acanthos etc.
That's great,thanks.
Is there any Channel about calcareous nannofossils in telegram or other social networks?
Many thanks to all contributor of this website.Thaks,Masykur
I am doing a little study sort of updating Aubry et al. 2005 on Mesozoic cocco size. To do so, I saw that we can plot coccolith from nannotax with stratigraphic range. But I wonder we can extract those data in .txt? It would save me thousands of copy/paste.
Thanks
Bap
If you let me know what you want I can almost certainly send you the data
Jeremy
It might be worth trying posting that on the coccoliths list server, that may work better for getting general comments. Synthesising an reviewing data almost always proves useful in my experience though so your idea sounds well worth thinking about.
Jeremy
The main way you can do an age related search is to go to Tools/Prefs & Time Control. There you can set the time interval you are interested in (e.g. Oligocene or Albian or 100 to 102 Ma) and the taxa which fall within that time interval will be highlighted. If you wanted something a bit different to that then feel free to explain a bit more.
All the best
Jeremy
thanks for your reply,I tried in that way but It didn't work or I need more guide. Regards
- there is more information on the user guide page http://ina.tmsoc.org/Nannotax3/ntax-userguide.htmlThat should explain what to do.Jeremy"""
For the INA15 meeting in the Philipines we have done a series of further updates, including adding a lot more Mesozoic images. The BIG change though is that we have now added occurrence data from the Neptune database. This provides useful information on the abundance of taxa through time - BUT READ THE NOTES PAGE. From the menu bar - About Nannotax/The Neptune Database
We have not used GTS2012 for nannofossil ranges (only for age calibrations) so there may well be discrepancies. In this particular case I suspect someone has entered LAD into a database when they should have written FAD. O. serratus definitely occurs from NN2 to NN6 (it may of course have a longer range but there are plenty of records of specimens through that age range).
I have been working closely over the Santonian - Turonian section and I am not sure the Millions of year ages match for some taxa in the database?. So you know I have been comparing the database with what I observed, Jackie and various other papers along with Timescale Creator but was not sure what to do about really any suggestions?
First thing to note here is that ages are always given as some sort of primary data - e.g. a chronostrat stage or nanno zone then the translation into Ma age.The primary data is stored in the database and the Ma age conversion is done by the program as needed, using a look-up table provided by Jim Ogg, with the age quoted being that of either the top or the bottom of the time interval, as appropriate. E.g. If the primary data is that the LAD is in Late Turonian then the Ma age given is 91.41 which is the age of the top of the Late Turonian, conversely if the FAD is in the Late Turonian then the Ma age given would be 89.77. The ages are all from GTS 2012 so can be looked up by using the range charts (Tools menu).
Specific problems might be caused by the primary data being wrong (e.g. the LAD should be Mid Cenomanian not Early Turonian) or possibly by an error in the look-up table. If you have spotted likely glitches do let me know.