Archaeopteryx is an interactive computer software program, written in Java, for viewing, editing, and analyzing phylogenetic trees.

This type of program can be used for a variety of analyses of molecular data sets, but is particularly designed for phylogenomics.

Besides tree description formats with limited expressiveness (such as Newick/New Hamphshire, Nexus), it also implements the phyloXML[1] format.

Archaeopteryx is the successor to Java program A Tree Viewer (ATV).

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