Time Control

The age-window is currently set to: top=0Ma base=300Ma with sorting

Choose the time period you want to focus on

Or, select top and bottom chronostrat units

Top unit
Base unit
Or, enter a precise age range (in millions of years):

Top of age range:
Base of age range:

What does this do?

Our system contains taxa from a wide range of geological time. So, if you are specifically interested in one time period - e.g. the present day, or Paleocene, or Early Cretaceous - then it will be easier if it is clear which taxa are present in that time interval. To do this, you can set an age-window using the tools above. [NB We now finally have a nice graphical selector (background image from TimeScaleCreator), but I'll leave the other selectors on since they give more precise time selection.]

When an age-window is set

Other Preferences

Filenames: Do you want to display file names below images?

Sorting: Do you want to display taxa that occur within the time control age-window at the top of lists?

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