Phylogenetic Tree Concepts

Front

A branching diagram that shows the evolutionary relationships between organisms.

Back

Phylogenetic tree.

Front

Where are the ancestors found in a phylogenetic tree?

Back

Base ('trunk') of the tree.

Front

Where branches meet, showing where species have diverged/changed, representing a common/shared ancestor.

Back

A NODE

Front

A group of related organisms.

Back

A TAXON

Front

A group of two or more taxa in a phylogenetic tree that begins with a node (ancestor) and includes all descendants of that node.

Back

A CLADE

Front

A line that connects nodes, with the length indicating evolutionary time between the two nodes.

Back

A BRANCH

Front

An organism that shares a common ancestor with others but is earlier in evolutionary time.

Back

An OUTGROUP