Figure 3: Example of an evolutionary timeline retrieved using
PAReTT for the Lazuli bunting. The left panel indicates the major
geologic timescale of the past 2000 million years including the
prevailing Phanerozoic Eon as well as the subdivisions by era Paleozoic
which lasted until approximately 250 MYA when the Mesozoic started which
lasted until 65 MYA. As is illustrated, this period was marked by the
emergence of the first birds in the class Aves approximately 110 MYA.
The species currently recognized in the family Cardinalidae emerged in
the Cenozoic era with most species of the genus Passerina first
emerging 4 MYA.