Range Chart plotter
Species to plot:
Data to plot: Mikrotax range-bar?
:: Neptune data?
:: Diversity plots?
Guidelines every N taxa
Blue histograms or spindle diagrams plot the frequency of occurrence of the taxon (and synonyms) in the Neptune database. Solid purple >50 samples in time bin, below this transparency increases.
Range boxes show the ranges recorded on this website
Pink - interval within which LAD occurs
Green - interval within which FAD occurs.
Hold cursor over plot to get 'tool tip' info on colours and plotted values.
- Neptune does not really have enough data in the Cretaceous to be very reliable. Likewise some ranges from the website are only rough estimates.
For more explanation of the database and important
on using the plots -
Neptune database introduction
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Species to plot
text and the