A phylogenetic event horizon is a
A) point in the future in which species will diversify.
B) phylogeny based on extinct species.
C) point in the history of life beyond which phylogenetic analysis cannot see.
D) point at which life started.

Question

Quizplus · Accepted Answer

A phylogenetic event horizon refers to a point in the history of life beyond which it becomes difficult or impossible to reconstruct the evolutionary relationships among organisms. This can be due to gaps in the fossil record, lack of genetic data, or other factors that prevent us from seeing further back in time. It is not a point in the future, based on extinct species or the starting point of life.

A Phylogenetic Event Horizon Is a