The age-window is currently set to: top=0Ma base=800Ma with normal taxa sorting
Choose the time period you want to focus on
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 have a nice graphical selector (background image from TimeScaleCreator), but I have left the other selectors on since they give more precise time selection. Note that if you use the selectors in the box the result is reflected by the graphical sliders.
When an age-window is set